14. Two wires of the same material and same cross section are stretched on a sonometer. One wire is loaded with 1.5 kg and another is loaded with 6 kg. The vibrating length of first wire is 60 cm and its fundamental frequency of vibration is the same as that of the second wire. Calculate vibrating length of the other wire.
[Ans: 1.2 m]

15. A pipe closed at one end can produce overtones at frequencies 640 Hz, 896 Hz and 1152 Hz. Calculate the fundamental frequency.
[Ans: 128 Hz]

16. A standing wave is produced in a tube open at both ends. The fundamental frequency is 300 Hz. What is the length of tube? (speed of the sound = 340 m s'). [Ans: 0.57 m]

17. Find the fundamental, first overtone and second overtone frequencies of a pipe, open at both the ends, of length 25 cm if the speed of sound in air is 330 m/s. [Ans: 660 Hz, 1320 Hz, 1980 Hz]

18. A pipe open at both the ends has a fundamental frequency of 600 Hz. The first overtone of a pipe closed at one end has the same frequency as the first overtone of the open pipe. How long are the two pipes? [Ans : 27.5 an, 20.625 cm]

19. A string 1m long is fixed at one end. The other end is moved up and down with frequency 15 Hz. Due to this, a stationary wave with four complete loops, gets produced on the string. Find the speed of the progressive wave which produces the stationary wave.[Hint: Remember that the moving end is an antinode.] [Ans: 6.67 m

20. A violin string vibrates with fundamental frequency of 440Hz. What are the frequencies of first and second overtones? [Ans: 880 Hz, 1320 Hz]

21. A set of 8 tuning forks is arranged in a series of increasing order of frequencies. Each fork gives 4 beats per second with the next one and the frequency of last fork is twice that of the first. Calculate the frequencies of the first and the last fork. [Ans: 28 Hz, 56 Hz]

22. A sonometer wire is stretched by tension of 40 N. It vibrates in unison with a tuning fork of frequency 384 Hz. How many numbers of beats get produced in two seconds if the tension in the wire is decreased by 1.24 N? [Ans: 12 beats]

23. A sonometer wire of length 0.5 m is stretched by a weight of 5 kg. The fundamental frequency of vibration is 100 Hz. Calculate linear density of wire. [Ans: 4.9.10' kg/m]

24. The string of a guitar is 80 cm long and has a fundamental frequency of 112 Hz. If a guitarist wishes to produce a frequency of 160 Hz, where should the person press the string? [Ans : 56 cm]

RESONANCE , BEATS , NATURAL FREQUENCY - GOOD VIDEOS

https://www.youtube.com/watch?v=jewSVEBkI_s
Forced Oscillation Resonance

https://www.youtube.com/watch?v=X6iJ0hPpGec
Learn to Break a Glass with Your Voice || Learn Quick

https://www.youtube.com/watch?v=C-Bn70PpbrM
Lesson 34 - Resonance - Forced Vibrations - Demonstrations in Physics

https://www.youtube.com/watch?v=qoDAue56LXM
Beats at 2 Tuning Forks

https://www.youtube.com/watch?v=IQ1q8XvOW6g
Beats Physics

https://www.youtube.com/watch?v=yia8spG8OmA
Beats Demo: Tuning Forks

https://www.youtube.com/watch?v=W4YaemEauGo
F-J's Physics - Barton's Pendulums and Resonance - Video 35

https://www.youtube.com/watch?v=vNuDxc9tZMk
Top 10 Demonstrations With Tuning Forks | Arbor Scientific

https://www.youtube.com/watch?v=XwlZBJIp1AA
Physics - 26.3 Natural Frequency and Resonance

WRITING Ionic Formulas: Criss-Cross Method - PRACTICE PROBLEMS - WORKSHEET - CHEMISTRY

Writing Formulas for Ionic Compounds

NAMING OF IONIC COMPOUNDS- WORKSHEET1

NAMING OF IONIC COMPOUNDS- WORKSHEET 1-SOLUTIONS

NAMING IONIC COMPOUNTS - WORKSHEET 2

.

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Ionic Formulas: Criss-Cross Method

Class 10 ICSE PHYSICS BIOLOGY JOURNALS SCANS

PHYSICS

BIOLOGY

Interference Class 12 Physics Solved Numerical with solutions for practice

Interference Solved Problem with Solutions for practice - YOUNG DOUBLE SLIT EXPERIMENT

pdflink_problems solutions

Writing Chemical Formulas for Ionic Compounds using the Criss-Cross Method

Maharashtra Board Class 12 Physics Chapter 7 Wave Optics Questions.

13. White light consists of wavelengths from 400 nm to 700 nm. What will be the wavelength range seen when white light is passed through glass of refractive index 1.5571 [Ans: 258.06 - 451.61 nm]

14. The optical path of a ray of light of a given wavelength travelling a distance of 3 cm in flint glass having refractive index 1.6 is same as that on travelling a distance x cm through a medium having refractive index 1.25. Determine the value of x.

15. A double-slit arrangement produces interference fringes for sodium light ( = 589 nm) that are 0.20° apart. What is the angular fringe separation if the entire arrangement is immersed in water (n = 1.33)? [Ans: 0.15°]

16. In a double-slit arrangement the slits are separated by a distance equal to 100 times the wavelength of the light passing through the slits. (a) What is the angular separation in radians between the central maximum and an adjacent maximum? (b) What is the distance between these maxima on a screen 50.0 cm from the slits?
[Ans: 0.01 rad, 0.5 cm]

17. Unpolarized light with intensity Io is incident on two polaroids. The axis of the first polaroid makes an angle of 50° with the vertical, and the axis of the second polaroid is horizontal. What is the intensity of the light after it has passed through the second polaroid? [Ans: 10/2 x (cos 40°)2]

18. In a biprism experiment, the fringes are observed in the focal plane of the eyepiece at a distance of 1.2 m from the slits. The distance between the central bright band and the 20th bright band is 0.4 cm. When a convex lens is placed between the biprism and the eyepiece, 90 cm from the eyepiece, the distance between the two virtual magnified images is found to be 0.9 cm. Determine the wavelength of light used. [Ans: 5000 A]

19. In Fraunhoffer diffraction by a narrow slit, a screen is placed at a distance of 2 m from the lens to obtain the diffraction pattern. If the slit width is 0.2 mm and one of the slits in Young's experiment is twice the intensity of the light coming from the other slit. What will be the approximate ratio of the intensities of the bright and dark fringes in the resulting interference pattern? [Ans: 34]

20. The intensity of the light coming from one of the slits in Young's experiment is twice the intensity of the light coming from the other slit. What will be the approximate ratio of the intensities of the bright and dark fringes in the resulting interference pattern?

21. A parallel beam of green light of wavelength 546 nm passes through a slit of width 0.4 mm. The intensity pattern of the transmitted light is seen on a screen which is 40 cm away. What is the distance between the two fast order minima?
[Ans: 1.1 mm]

22. What must be the ratio of the slit width to the wavelength for a single slit to have the first diffraction minimum at 45.0°? [Ans: 1.27]

23. Monochromatic electromagnetic radiation from a distant source passes through a slit. The diffraction pattern is observed on a screen 2.50 m from the slit. If the width of the central maximum is 6.00 mm, what is the slit width if the wavelength is (a) 500 nm (visible light); (b) 50 p.m (infrared radiation); (c) 0.500 nm (X-rays)? [Ans: 0.416 mm, 41.6 mm, 4.16x104 mm]

24. A star is emitting light at the wavelength of 5000 A. Determine the limit of resolution of a telescope having an objective of diameter of 200 inch. [Ans: 1.2 x104 rad]

25. The distance between two consecutive bright fringes in a biprism experiment using light of wavelength 6000 A is 0.32 mm by how much will the distance change if light of wavelength 4800 A is used? [Ans: 0.064 mm]

AADHAAR CARD FAQ

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ICSE CLASS 10 MERCHANT OF VENICE (MOV) MCQs | ACT 3 | 2021 EXAMS

1. Who addressed Shylock as 'the most impenetrable cur'?
a) Gaoler
b) Antonio
c) Salarino
d) Gratiano
2. What is the meaning of' 'gratis'?
a) gratitude
b) free of interest
c) with great interest
d) generosity
3. 'Thou call'dst me dog before thou hadst a cause’. Who called whom a
dog?
a) Gratiano called Shylock
b) Shylock called Antonio
c) Antonio called Shylock
d) Shylock called Gratiano
4. The meaning of 'impenetrable cur'
a) hard- hearted dog
b) hard- hearted enemy
c) hard- hearted devil
d) kind - hearted dog
5. Who calls Gaoler naughty?
a) Salarino
b) The Duke
c) Antonio
d) Shylock
6. Who are the strangers referred to in act3 scene 3?
a) foreigners
b) servants
c) Venetian citizens
d) Bassanio and Antonio
7. Where does Act 3 scene 3 take place?
a) a street in Venice
b) a court of justice
c) Belmont
d) A room in Shylock's house
8. Who cannot deny the course of law?
a) Antonio
b) The Duke
c) Shylock
d) Bassanio
9. Their souls do bear the equal yoke of Love" about whom it is said
a) Gratiano and Nerissa
b) Portia and Bassanio
c) Portia and Nerissa
d) Antonio and Bassanio
10. What does Portia share about her habit of doing good?
a) I love to do good
b) I never did repent for doing good
c) I try to be generous always
d) I long to do good
11. What does Portia entrust to Lorenzo's care?
a) The husbandry and manage of her house
b) The supervision of the entire household activities
c) The control of her servants
d) The careful handling of all her monetary transactions.
12. Who speaks about God like amity in Act 3 scene 4?
a) Portia
b) Lorenzo
c) Nerissa
d) Gratiano
13. What urges Portia to entrust the management of her house to
Lorenzo's care?
a) Her urgent need
b) Her love and some necessity
c) Her inability to handle everything alone
d) Her depressed mood due to the departure of Bassanio.
14. After Bassanio has left for Venice to save Antonio, where does
Portia claim she is going?
a) To Venice to save Antonio
b) To a Monastery to pray
c) To the notary to see the details of the bond.
d) To get the Lawyer's attire
15. What is the name of Portia's cousin who is a doctor of the law?
a) Bellario
b) Brahme
c) Bradon
d) Balthazar
16. What is Portia's response to Nerissa's question "Shall they see us"?
a) We will stay hidden
b) Yes, but we will be dressed like men
c) Yes, and we will try to fool them
d) No, but they will hear our voice
17. Where does Portia's cousin live?
a) Padua
b) Rome
c) Paris
d) Venice
18. "Madam, with all my heart I shall obey you in all fair commands.”
Who speaks these words?
a) Balthazar
b) A servant of Portia
c) Lorenzo
d) Launcelot
19.What is meant by “god-like amity”?
a) God-like figure
b) Spiritual friendship
c) Spiritual awakening
d) Wisdom
20.“How dear a lover of my lord your husband” – who is referred as “a lover”
in this comment made by Lorenzo?
a) Bassanio
b) Antonio
c) Jessica
d) Portia
21.Who is “the bossom lover” of Bassanio?
a) Portia
b) Gratiano
c) Antonio
d) Launcelot
22.“The semblance of my soul” – who is it for Portia?
a) Nerissa
b) Bassanio
c) Dr. Bellario
d) Antonio
23.The state of hellish cruelty is created by whom?
a) Bassanio
b) Old Gobbo
c) Shylock
d) The Duke
24.Who does consciously stop praising the self and says “no more of it”?
a) Gratiano
b) Shylock
c) Salerio
d) Portia
25.“I wish your ladyship all heart’s content.” – who to whom?
a) Nerissa to Porta
b) Jessica to Portia
c) Portia to Jessica
d) Bassanio to Portia
26.Who is asked by Portia to travel with an imagined speed?
a) Balthazar
b) Bellario
c) Bassanio
d) Salerio
27.What are the things which Balthazar is charged to bring from Padua?
a) Sandals and stick
b) Notes and garments
c) Sandals and garments
d) Three thousand ducats
28.Where does the coach wait for Portia and Nerissa?
a) At the park-gate
b) At the common ferry
c) At the transect
d)At the house front
29.How does Lorenzo describe Portia?
a) As a selfish person
b) Having a true and noble conceit
c) Having a gentle soul
d) As an opportunist
30.“I have within my mind a thousand raw tricks of these bragging jacks.
What does the phrase “bragging Jacks” in the above extract mean?
a) Wandering Jacks
b) Boastful fellows
c) Questioning jacks
d) Idle jack
31. How will Portia spend her days in the monastery?
a) Partying
b) Disguising
c) Gardening
d) Prayer and meditation
32.4. How will the people acknowledge Lorenzo and Jessica?
a) Master and mistress
b) Guests
c) Uncle and aunt
d) guardians
33.5. How will Portia and Nerissa dress up?
a) As young men
b) As dancers
c) As priests
d) As clowns
34.What occupation does Portia's cousin hold?
a) Judge
b) doctor
c) lawyer
d) jailer
35.7. Where is Balthazar supposed to meet Portia and with what?
a) Traject- notes and garments
b) The church- flowers
c) Street- Money
d) Port- documents
36.8. Who will be attending Portia in monastery
a) Launcelot
b) Jessica
c) Nerissa
d) Lorenzo
37. “But come, I’ll tell thee all my whole device
When I am in my coach”
What is in Portia’s mind as she leaves her home for Venice?
a) To accompany Bassanio
b) To defend Antonio
c) To go to monastery
d) To meet Dr. Bellario
38. For what reason Lorenzo is to be blamed?
(a) For the elopement of Jessica
(b)For the conversion of Jessica
(C) For the management of Portia's house
(d) For eating porks
39. What was the belief of Christians in Shakespeare’s days ?
(a) No salvation for the souls of Christians
(b) No salvation for the souls of Jews’ daughters
(c)No Salvation for the souls of Jews and non-Christians.
(d) No Salvation for Jessica
40. How does Jessica hope to escape damnation?
(a) through her father
(b)through her husband
(c) through her dead mother
(d) through the punishment
41. Why does Jessica suggest that Bassanio should lead an upright life ?
(a)because he got a woman with unparalleled qualitiesas his
wife
(b) because he has more enjoyment
(c) because of Shylock’s money
(d) because of friend's company
42. According to Jessica, if God decided to give prizes to women who
would win ?
(a)Portia
(b) the other women
(C) Jessica
(d) Nerissa
43. What does Launcelot misunderstand in the context of serving
dinner ?
(a) get dinner cooked
(b)prepare themselves for dinner
(C) dinner is served
(d) dinner is not ready
44. How does Launcelot behave in this scene?
(a) arrogant
(b) adamant
(c)refined jester
(d) joker
45. Why does Lorenzo call Launcelot a big fool?
a) He says always foolishness
b) He misuses some words without knowing their real
meaning
c) He is a joker
d) He doesn’t know anything
46. To whom Portia made the in charge of the house?
a) Launcelot and Laurenzo
b) Laurenzo and Jessica
c) Jessica and Launcelot
d) Launcelot
47. What is Launcelot’s attitude towards Jessica?
a) Suspicious
b) Sarcastic
c) Envy
d) sympathetic
48. What skill of Launcelot is displayed here in this scene?
a) Verbal skill
b) Stamina
c) Cooking skill
d) Mathematical skill

======================================================

MERCHANT OF VENICE ACT 3
SCENE – I TO V
1.What rumour do Salarino and Solanio discuss and then seek to have
confirmed by Shylock?
a) Jessica running away b) Antonio’s lost ship
c) Bassanio’s courtship of Portia d) Jessica stealing a ring
2) Tubal reports Jessica has stolen a ring of Shylock's. What does she trade
the ring for?
a) monkey b) fine clothes c) Portia’s ring d) Thousand of ducats
3) What cheers up Shylock after hearing of his daughter's theft?
a) Bassanio’s financial ruin (b) News of Jessica’s marriage
c)Tubel tells a joke               d) Antonio’s financial ruin
4) In Act III, scene II, Portia compares Bassanio to which figure?
a) Hercules         b) Thor         c) Athena           d) Mercury
5) What piece of bad news interrupts the celebrations at Belmont?
a) The outbreak of war         b) Shylock’s arrival
c) Gratiano and Nerrisa’s engagement   d) Antonio’s bankruptcy
6) What animal does Shylock remember Antonio comparing him to?
a) a hind   b) a wolf c) a dog d) a ship
7)   Lorenzo and Portia discuss helping Antonio. Why does Portia agree to
help?
a) She hates shylock   b) Antonio is kind
c) Antonio is Bassanio’s friend   d) For the challenge
8) Who does Portia send to Padua to secure clothing and documents for
herself and Nerissa?
a) Portia’s cousin Dr Bellario     b) Portia’s servant Balthazar
c) Portia’s servant , Nerissa   d) Lorenzo
9) In Act III, Scene V, what does Lorenzo chastise Launcelot for?
a) Impregnating a Moorish servant b) Joking about bacon prices
c) Judging Shylock d) Flirting with Jessica
10) Who does Lorenzo favourably compare himself to when speaking to
Jessica?
a) Portia   b) Launcelot c) Antonio d) Shylock
11) Who is the Merchant of Venice?
a) Bassanio b) Antonio c) Shylock d) Gratiano
12) Who needs money to suit Portia?
a) Bassanio b) Antonio c) Shylock d) Gratiano
13)    Who marries Nerissa?
a) Bassanio b) Lorenzo c) Gratiano d) Solanio
14) Who marries Shylock's daughter, Jessica?
a) Gratianio b) Lorenzo c) Bassanio d) Antonio
15) What religion is Shylock?
a) Muslim b) Jewish c) Catholic d) Anglician
16) If Antonio cannot pay the money back in three months he must give
Shylock a pound of _________.
________________________________________________________________
Merchant of Venice Act 3, Scene 2
17.
Why does Portia ask Bassanio to wait before taking the casket test?
a)Wants to spend time
b)So that she can teach him to choose the right casket
c)Its a condition put forth to all suitors
d)Wanted to play music
18.
What kind of music should be played if Bassanio chooses the wrong casket?
a) Swan-like end
b) Subjects bowing before a newly crowned monarch
c) Dulcet sounds during the break of day
19) .
What does Portia compare Bassanio to while going to take the casket test?
a) king of Troy
b) Apollo
c) Poseidon
d) Alcides
20)
What are false hearts compared to?
a) Stairs of sand
b) Cowards
c)Hercules
d) Alcides
21)
What does the expression ‘snaky golden locks’ imply comparison to?
a)Athena
b)Medusa
c)Hesoine
d)Medea
22)
What is Portia hair in the portrait compared to?
a) Cobwebs
b )Blonde hair
c) Medusa
d) Indian beauty
23)
What does Bassanio feel like after winning Portia?
a) Like a Jason
b )Like Hercules
c) Like a contender who has won the prize
24)
How many times richer did Portia wish to become for Bassanio?
a) Trebled twenty times
b )A thousand times
c) Ten thousand times
d) Ten times
25)
How confused does Bassanio feel when Portia gives him the ring?
a) Crowd cheering for their beloved prince after oration
b) On top of the world
c) To take the ring or not
26)
Who is the Venetian friend, referred to in the scene?
a) Lorenzo
b ) Jessica
c )Gratiano
d) Salerio

27)
What happens to Bassanio on reading the letter?
a) Colour of his cheeks fade
b) Faints
c) confused
28)
What does Bassanio compare the letter to?
a) A bond
b) Body of his friend, Antonio
c) A piece of paper
29)
Who all have persuaded Shylock to deface the bond?
a) Antonio, Bassanio and Portia
b )Duke, noblemen and Antonio
c) Duke, Bassanio and 10 merchants
d) Duke, 20 merchants and noblemen
30)
What does Portia ask Bassanio to do before he goes to Venice to save
Antonio?
a) Go with her to church and get married
b) Go with her to church and pray
c) meet the lawyer
d)Take advice from her cousin
31.
Along with money, what does Portia offer Bassanio to save Antonio?
a) A precious ring
b) A bag of jewels
c) Gold
32)
Shylock says, "I am a Jew. Hath not a Jew eyes?" What theme is explored in
his speech?
A )People are tolerant of other religions and belief systems.
B )Jews are superior to Christians.
c)The treatment of the religions is hypocritical.
d)Revenge is completely unacceptable.
________________________________________________________________
___________
33) 4. After Bassanio leaves to save Antonio, where does Portia claim she is
going?
a) To Venice to save Antonio
b) To a convent to pray
c) To the notary to read the details of the loan
d) To Padua to get clothes from her cousin
34) Act 3, Scene 5 starts out with a discussion between Lancelot and Jessica.
What does Lancelot accuse her of?
a) Raising the price of pork
b) Only wanting Lorenzo's money
c) Being wasteful with money
d) Being insincere in her love for Lorenzo
35) Why is Shylock so upset when Jessica runs away?
a)Because his daughter ran away
b)Jessica sold his wife's ring to buy a monkey
c)Jessica stole money from him
d) All of the above
36) What is the name of the place where Venetians do their trading?
a)Riviera
b)Rialto
c)Riverdance
d)Rhinestone
37)
What "torture device" do Bassanio and Portia joke about when discussing
their relationship?
a)The rack
b)The crusader
c)The bond
d)The bear

38) What Greek Mythology character is Bassanio referring to when he says
that gold is not all there is in life?
a)Midas
b)Jason
c)Brutus
d)Hercules
39)
What does Antonio request of Bassanio in his letter?
a)to see Bassanio be married
b)to be visited by Bassanio
c)to see Shylock suffer
d) to get his money back
40)
What emotion best describes Antonio's feelings when he realises that
Shylock isn't going to back down?
a)resigned
b)angry
c)energized
d)vengeful
41)
What two words does Shylock repeat five times in Act 3, Scene 3 when he is
talking to the Antonio and the jailer?
a) my bond
b) my ducats
c) your flesh
d) dear Antonio
42)
Who does Portia ask to take care of her household while she is away?
a)Lorenzo
b)Lancelet
c)Nerissa
d)Salarino
43) What is the name of Portia's cousin, the doctor?
a)Bellario
b)Brahm
c)Brandon
d)Brassario
44)
What name does Portia take when she is in disguise?
a)Balthazar
b)George
c)Othello
d)Ricardo
45)
What does Shylock say his reason is for wanting the pound of flesh over
3,000 ducats?
a)Because he feels like it
b)Because he is going to sell it
c)Because it is Jewish Law
d)Because of a Bible story

INTERFERENCE DIFFRACTION NOTES AND PROBLEMS WITH SOLUTIONS

PROBLEMS(WITH SOLUTIONS)

NOTES-INTERFERENCE

Amplitude and Intensity of Resultant Wave Calculations due to Superposition of 2 Waves | Theory & Numericals

Amplitude and Intensity of Resultant Wave Calculations due to Superposition of 2 Waves

Theory and Numericals

Problems For Practice 1. The phase difference between two light waves reaching a point is is π / 2 What is the resultant amplitude if the individual amplitudes are 3 mm and 4 mm ? 2. Two light waves superposing at the midpoint of the screen are coming from coherent sources of light of phase difference 3 π radian. Their amplitudes are 1 cm each. What will be the resultant amplitude at the given point ? 3. Two coherent monochromatic light beams of intensities I and 41 are superposed. What will be the maximum and minimum possible intensities ? [IIT]

superposition of waves good videos youtube

https://www.youtube.com/watch?v=-k2TuJfNQ9s

https://www.youtube.com/watch?v=hnZ1FKVWN4k

https://www.youtube.com/watch?v=5raMmc7BeEY

https://www.youtube.com/watch?v=NazBRcMDOOo&

https://www.youtube.com/watch?v=Iuv6hY6zsd0

https://www.youtube.com/watch?v=qUiB_zd9M0k

ICSE CLASS 10 CIVICS | FULL REVISION | MCQs, Important Question Bank | DEC 2021 Exam

NCERT CLASS 11 WAVES EXEMPLAR SOLUTIONS DOWNLOAD PDF

Waves Chapter Class 11 Physics pdf

Waves Exemplar Class 11 Physics pdf

A transverse harmonic wave on a string is described by y (x,t) =

3.0 sin (36t + 0.018x + π/4)

where x and y are in cm and t is in s. The positive direction of x is

from left to right.

(a) The wave is travelling from right to left.

(b) The speed of the wave is 20m/s.

(d) The least distance between two successive crests in the wave

is 2.5 cm.

15:11

15:35 In the given progressive wave

y = 5 sin (100πt – 0.4πx )

where y and x are in m, t is in s. What is the

(a) amplitude

(b) wave length

(d) wave velocity

(e) particle velocity amplitude

For the harmonic travelling wave y = 2 cos 2π (10t–0.0080x + 3.5)

where x and y are in cm and t is second. What is the phase

difference between the oscillatory motion at two points separated

by a distance of

(a) 4 m

(b) 0.5 m

(d)3λ/4

(at a given instant of time)

(e) What is the phase difference between the oscillation of a

particle located at x = 100cm, at t = T s and t = 5 s

15:10 For the travelling harmonic wave

y(x, t) = 2.0 cos 2π (10t – 0.0080 x + 0.35)

where x and y are in cm and t in s. Calculate the phase difference between oscillatory

motion of two points separated by a distance of

(a) 4 m,

(b) 0.5 m,

(d) 3λ/4

15:10

ICSE Class 10 History Chapterwise Picture based Questions | Dec 2021 Exam

Picture based questions from below chapters:

First War of Independence: 1857
The Rise of Nationalism and Foundation of the Indian National Congress
The Programme and Achievements of the Early Nationalist
Rise of Assertive Nationalism
The Partition of Bengal
Formation of the Muslim League
The National Movement During the First World War (1915-1919)
Mahatma Gandhi & The National Movement (1919-1934)
Events Leading to the Quit India Movement (1935-1943)
Subhash Chandra Bose and the I.N.A
Towards Partition of India (1944-1947)

00:00 lord wellesley
01:15 lord dalhousie
02:00 A O Hume
02:38 Gandhiji
04:45 JallianwalaBagh
05:18 Netaji Bose
06:48 S Banerjee
07:34 Gokhaleji
08:19 Tilakji
08:57 Lalaji
09:48 Gandhiji/Mountbatten
12:03 RAMmOHANrOY
12:58 lALbALpAL
13:27 DandiMArch
14:24 Gokhaleji
15:14 Gandhi/Irwin

MAHARASHTRA BOARD CLASS 12 PHYSICS CHAPTER 6 SUPERPOSITION OF WAVES SOLUTIONS

A wave of frequency 500 Hz is travelling with a speed of 350 m/s. (a) What is the phase difference between two displacements at a certain point at times 1.0 ms apart? (b) what will be the smallest distance between two points which are 45° out of phase at an instant of time? [Ans : t, 8.75 cm ]

v) The amplitude of a wave is represented by y = 0.2 sin 4ir [. —x i in SI units. 0.08 0.8 Find (a) wavelength, (b) frequency and (c) amplitude of the wave.

A wave is represented by an equation y = A sin (Bx + Ct). Given that the constants A, B and C are positive, can you tell in which direction the wave is moving?

Which of the following equations represents a wave travelling along the y-axis? (A) x = A sin (ky — cot) (B) y = A sin (kx — cot) (C) y = A sin (ky) cos(cot) (D) y = A cos (ky)sin(cot)

ICSE CLASS 10 HISTORY | Complete Revision | MCQs Question Bank | Semester 1 Syllabus 2021

ICSE CLASS 10 HISTORY | MCQs Question Bank | Semester 1 Syllabus 2021

SOLUTIONS/NOTES/pdf

Why
Political Causes of 1857 Revolt
Economic Causes of 1857 Revolt
Socio Religious Causes of 1857 Revolt
Military Causes of 1857 Revolt
Causes of Non Cooperation Movement
Causes of Civil Disobedience Movement
Causes of Quit India Movement
Causes of Salt March
Why was Simon Commission boycotted ?
Why was Rowlatt Act boycotted ?
Why Non Cooperation Movement withdrawn/called off/suspended
Why was Simon Commission boycotted ?
Why Civil Disobedience Movement withdrawn?
Why was Mountbatten Plan accepted ?

Aim or Objective
Objectives of Early Nationalists Phase (Moderates)
Objectives of Assertive Nationalists (Radicals)
Objectives of INC
Objectives of Muslim League
Objectives of Non Cooperation Movement
Objectives of Forward Bloc
Objectives of INA/Azad Hind Fauj

Methods
Methods of Early Nationalists Phase (Moderates)
Methods of Assertive Nationalists (Radicals)

Impact
Impact of Non Cooperation Movement
Impact of Civil Disobedience Movement

Provisions
Provisions or clauses of Indian Independence Act of 1947
Provisions or clauses of Mountbatten Plan

Derivation of equation of travelling (progressive) wave | y(x,t) = A sin(kx - ωt + φ)

In this video we derive equation of a Travelling (Progressive) Wave.

This step by step derivation will help all Class 11 physics students especially the meaning of Wave Number k and the meaning of Initial Wave conditions - initial phase angle.

00:00 A line running towards right

12:40 Meaning of y=A sinkx

17:50 Wave number meaning

26:12 y=A sin k (x-vt)

28:32 y=A sin (kx-wt)

31:50 Initial Conditions

35:33 Solved Numericals

Spread Love ♥♥♥♥ - Like / Comment / Share! I hope you find this is useful. As it's a live lecture, you may like to increase speed to 1.25X or 1.5X. Thanks for watching. Live long and prosper

. . . . . . . . . . . . . . . . . . . . . . . . ------- tags equation of travelling wave on a stretched string of linear density travelling wave equation derivation the equation of travelling wave is y=asin 2pi travelling wave equation solution speed of travelling wave formula travelling wave equation in power system travelling sine wave equation the speed of a travelling wave class 11 speed of travelling wave formula travelling wave equation derivation travelling wave equation in power system what are travelling waves velocity of travelling wave in transmission line travelling wave equation derivation travelling wave equation solution equation of travelling wave on a stretched string of linear density stationary wave equation what is travelling wave speed of travelling wave formula speed of traveling wave travelling wave example travelling wave equation solution derivation of wave equation travelling waves equation travelling sine wave equation equation of travelling wave on a stretched string of linear density speed of traveling wave progressive waves types progressive wave formula progressive waves examples progressive wave diagram speed of progressive wave formula displacement of progressive wave plane progressive wave characteristics of progressive wave waves class 11 physics waves chapter of class 11 notes pdf waves class 11 physics ncert solutions waves class 11 notes waves class 11 pdf wave motion physics notes pdf waves class 11 formulas wave motion class 12 notes pdf waves class 11 ncert pdf ncert class 11 physics chapter 15 pdf waves chapter of class 11 notes pdf ncert solutions class 11 physics questions on waves class 11 ncert physics class 11 chapters waves class 11 ncert notes waves ncert exemplar superposition of waves class 12 notes pdf superposition of waves class 12 maharashtra board superposition of waves class 12 notes state board superposition of waves class 12 all formulas superposition of waves class 12 ppt superposition of waves class 12 exercise superposition of waves formula superposition of waves notes pdf speed of progressive wave formula progressive wave equation pdf progressive wave equation problems progressive waves examples equation of progressive wave is given by #isequaltoklasses #waves #maharashtraboard #CBSE

ICSE CLASS 10 HISTORY | SEMESTER 1 2021 | IMPORTANT NAMES | MCQS QUESTION BANK

ICSE CLASS 10 HISTORY SEMESTER 1 2021 IMPORTANT DATES MCQS QUESTION BANK

Who was the
First Indian to qualify ICS exam ____
Elected President of INC thrice ____
Father of Nationalist Movement ____
Father of Assertive Nationalism ____
Political mentor/Guru of Gandhi ____
Father of Revolutionary thought in India ____
Nationalist who renounced knighthood ____
Gave up the medal of Kaiser-i-Hind ____
First Governor General of Free India ____
First Governor General of Indian origin____
First Governor General of Pakistan ____
First President of Indian Republic ____
Viceroy who agreed setting up Muslim League_____
Permanent President of Muslim League_______
General who gave orders to shoot at Jallianwala Baug______
Leader who lost life during Simon Commission protest _____
Starters of Khilafat movement_________
Founder of INA_____
Supreme Commander in Chief of INA______
PM of Britain in 1947______
Founder of Indian National Congress (INC) ______
President of the First Session of INC______
Any 2 Early Nationalists leaders______
Any 2 Assertive Nationalists leaders _____
Viceroy responsible for Doctrine of Lapse _____
Viceroy responsible for Partition of Bengal____
First Viceroy ____
Last Viceroy _____

Institutions
Raja Ram Mohan Roy formed ___
Jyotiba Phule formed ____ Samaj
Gopal Krishna Gokhale formed ____ Society
Bal Gangadhar Tilak Founded_____ Society
Surendranath Banerjee formed ________Association
Dadbhai Naoroji formed ________ Association
Subhash Chandra Bose formed by______party

Who is called
Father of Indian Renaissance ______
Grand Old Man of India_________
a
Name a book by
Raja Ram Mohan Roy ____
Jyotiba Phule ____
Dadabhai Naoroji ____
Surendra Nath Banerjee ____
Lala Lajpat Rai ____

Name a newspaper started by
Raja Ram Mohan Roy
Dadabhai Naoroji
Surendra Nath Banerjee
Lala Lajpat Rai
Bal Gangadhar Tilak
Bipin Chandra Pal

ICSE CLASS 10 HISTORY SEMESTER 1 2021 IMPORTANT DATES MCQS QUESTION BANK

Mangal Pandey was hanged in the year __________
Formation of Indian National Congress (INC) was in the year_____________
Early Nationalism Phase was from ______ to ________
Assertive Nationalism Phase was from ______ to ___________
Partition of Bengal happened in __________
Formation of Muslim League was in the year_____________
Non Cooperation Movement began in the year_____________
Rowlatt Act was passed in the year_____________
Jallianwala Baug incident happened in the year_____________
Khilafat Movement happened in the year_____________
Withdrawal or suspension of Non Cooperation Movement was in the year_____________
Incident of Chauri Chaura happened in the year_____________
Civil Disobedience Movement began in the year_____________
Simon Commission came to India in the year_____________
Lahore Session of INC where Purna Swaraj was passed was held in the year_____________
Dandi March/Salt March/Salt Satyagraha was held in the year_____________
Gandhi Irwin Pact was made in the year_____________
Quit India Resolution was passed in the year_____________
Formation of Forward Bloc was in the year_____________
Formation of Indian National Army was in the year_____________
Formation of Indian National Army was in the year_____________
Mountbatten Plan was announced in the year_____________

Resonance on a String

https://www.youtube.com/watch?v=C-Bn70PpbrM
Lesson 34 - Resonance - Forced Vibrations - Demonstrations in Physics
Professor Julius Sumner Miller

https://www.youtube.com/watch?v=lKT3wBIUFhA
Natural Frequency Vibration Test
Douglas Baxter

https://www.youtube.com/watch?v=dihQuwrf9yQ
A better description of resonance
Steve Mould

https://www.youtube.com/watch?v=cnH2ltfW48U
Modes on a String
geoff martin

https://www.youtube.com/watch?v=cnH2ltfW48U

https://www.youtube.com/watch?v=-gr7KmTOrx0

ICSE CLASS 10 MCQs | TRANSPIRATION | Chapter 5 | Biology Revision Test | Question Bank

Fill in the blanks:

1. Cobalt chloride is an indicator of ________.

2.________ is a device that measures the rate of water intake by the plant.

3. More transpiration occurs under the surface of a ________ leaf.

4. Transpiration occurs more during ______.

5. Transpiration _______with increase in humidity.

6. Example of plant which shows sunken stomata is ________.

7. ________helps in the ascent of sap.

8. Special pore bearing structures which allow guttation to happen is called ________.

9. Guttation is common in _______plant.

10. Loss of water through cut stem is called_______.

True or False

1.Cobalt chloride paper is an indicator of carbon (T/F)

2.Oil is pored on the surface to prevent loss of water through evaporation (T/F)

3.More transpiration occurs during night (T/F)

4.Rate of transpiration increases with increase in atmospheric pressure (T/F)

5.Transpiration is an excretory process (T/F)

--------

ICSE CLASS 10 MCQs | ABSORPTION BY ROOTS | Chapter 4 | Biology Revision Test | Question Bank

1. ________is the branch of Biology which deals with life functions of the plant.
2. Cell wall is ______permeable, cell membrane is _______permeable, cellphone paper is _______permeable and rubber sheet is ______permeable.
3. ______are the extensions of the outer or epidermal cells of the roots.
4. ________is the phenomenon by which living and dead plant cells absorb water by surface attraction.
5. ______is the movement of water molecules from higher concentration to the region of lower concentration through a _______membrane.
6. Endosmosis tends to _______the cell.
7. The condition in which cell enlarges or even burst________
8. Condition when cell cannot accommodate any more water is called__________
9. Pressure of the cell contents on the cell wall is known as________
10. Condition when the cell is shrunken ________
11. Loss of water through cut stem is called ________
12. Loss of excess water in form of tiny drop along the margins of leaves is called ________
13. Water and salt travel up with help of ________
14. Food substances travel up and down with the help of ________

Spread Love ♥♥♥♥ - Like / Comment / Share!
I hope you find this is useful.
As it's a live lecture, you may like to increase speed to 1.25X or 1.5X.
Thanks for watching.
Live long and prosper.

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tags

plant physiology, fully permeable, imbibtion, osmosis, turgidity, turgor pressure, flacid, bleeding, guttation, xylem , phloem

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SUPERPOSITION OF WAVES CHAPTER 6 SOLUTIONS | MAHARASHTRA BOARD | PHYSICS CLASS 12