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ICSE CLASS 10 PHYSICS CHAPTERWISE YOUTUBE PLAYLISTS | NUMERICALS CONCEPTS
ICSE CLASS 10 PHYSICS CHAPTERWISE YOUTUBE PLAYLISTs
TIPS TO SCORE WELL ICSE CLASS 10 COMPUTER APPLICATIONS
TIPS TO SCORE WELL
ICSE CLASS 10 COMPUTER APPLICATIONS
SYLLABUS / PASTPAPERS / SPECIMEN PAPER LINK
(a+b+c)2=a2+b2+c2+2ab+2bc+2ca verify example prove compute how to factorise identity expansion proof
(a+b+c)2=a2+b2+c2+2ab+2bc+2ca verify example prove compute how to factorise identity expansion proof
PDFNOTES
tags: (a+b+c)^2 identity formula expansion proof (a+b+c)2=a2+b2+c2+2ab+2bc+2ca verify example prove compute ow to factorise using the identity (a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca SOME IMPORTANT MATHEMATICAL FORMULAE Express Square of a Trinomial Solve Algebraic Formulas for Class 9 – Basic Concepts and Identities Proofs, Examples, FAQs - Class 9 Maths Lab Manual identity Standard Algebraic Identities with Examples Algebraic Identity Derivation Activity How to expand using the identity ''(x+a)(x+b)=x2+(a+b)x+ab all formulas of expansion class 9 expansions in maths class 9 math class 9 algebra algebraic identities for class 8 activities expansion using special algebraic identities algebraic identities project Formulas, Tricks for Solving Quadratic Equations CBSE Class 9 Maths Chapter 2 Polynomial Notes Polynomials L4 | CBSE Class 9 Maths Chapter 2 NCERT ICSE 9 Maths | Expansions | Expansions. ICSE Class 9 Maths Chapter 4 Selina CONCISE MATHEMATICS Solutions EXPANSIONS CHAPTER | CBSE NCERT Polynomials Class 9 Extra Questions Maths Chapter 2 || Important Formulas Important Questions Solved Examples Algebraic identities NCERT Exemplar class 9 maths chapter 3 polynomials solutions chapter 3 polynomials class 9 worksheet class 9 maths chapter 3 maharashtra board polynomials class 9 pdf state board Practice Set CHAPTER 3 NOTES mcq pdf extra questions solutions worksheet with answers CONCEPTS Worksheet extra questions with answers | class 9 polynomials solutions chapter 2 polynomials class 9 worksheet polynomials class 9 textbook pdf polynomials class 9 solutions pdf polynomials class 9 pdf notes polynomials class 9 mcq polynomials class 9 worksheet pdf polynomials class 9 notes The concepts are good for Class 9, Class 10 ICSE CBSE BOARDS students or those appearing for competitive exams like maths olympiads, banking, nda, data science, mba, cat, etc. splitting the middle term class 9 polynomials polynomials class 9 ex 2.1 division of polynomials class 9 polynomials class 9 ex 2.2 polynomials class 9 ex 2.4 polynomials class 9 ex 2.5 polynomials class 9 factorisation of polynomials class 9 class 9 polynomials factor theorem polynomials class 9
circles selina concise mathematics solutions class 10 icse chapter 18 tangents and intersecting chords
clickhereforpdflink
circles selina concise mathematics solutions class 10 icse chapter 18 tangents and intersecting chords
HOW TO SOLVE SURDS CLASS 9 ICSE CBSE WORKSHEET WITH ANSWERS
HOW TO SOLVE SURDS CLASS 9 ICSE CBSE WORKSHEET WITH ANSWERS
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solutions good links
https://www.brainkart.com/article/Deliquescence_39674/
https://www.brainkart.com/article/Hygroscopy_39673/
https://www.brainkart.com/article/Hydrated-salts-and-Water-of-Crystallization_39672/
Hydrated salts and Water of Crystallization
Hygroscopy
Deliquescence
SELINA CHAPTER 25 SOLUTIONS_ EX 20B , 20C PROBABILITY
SELINA CHAPTER 25 SOLUTIONS_ EX 20B , 20C PROBABILITY
NOTESPDF
From a well-shuffled deck of 52 playing-cards, one card is drawn. Find the probability that the card drawn will : (i) be a black card. (11) not be a red card. (111) be a red card.
(iv) be a face card. (v) be a face card of red colour.
A card is drawn from a well-shuffled pack of 52 cards. Find the probability that the card
drawn is : (i) a spade. (ii) a red card. (iii) a face card. (iv) 5 of heart or diamond.
(v) Jack or queen. (vi) ace and king. (vii) a red and a king. (viii) a red or a King.
A card is drawn from a pack of 52 cards. Find the probability that the card drawn is :
(i) a red card (ii) a black card (iii) a spade (iv) an ace (v) a black ace (vi) ace of diamonds
(vii) not a club (viii) a queen or a jack.
From a well-shuffled deck of 52 cards, one card is drawn. Find the probability that the
Card drawn Is : (i) a face card. (11) not a face card. (ii1) a queen of black colour.
(iv) a card with number 5 or 6. (v) a card with number less than 8. (vi) a card with number between 2 and 9.
All the three face cards of spades are removed from a well-shuffled pack of 52 cards. A card is then drawn at random from the remaining pack. Find the probability of getting :
(i) a black face card (i1) a queen (ili) a black card.
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting :
(1) a queen of red colour. (ii) a black face card. (iii) the jack or the queen of hearts.
(iv) a diamond, (v) a diamond or a spade.
From a deck of 52 cards, all the face cards are removed and then the remaining cards are
shuffled. Now one card is drawn from the remaining deck. Find the probability that the
card drawn is : (i) a black card. (ii) 8 of red colour. (iii) a king of black colour.
Seven cards :- the eight, the nine, the ten, jack, queen, king and ace of diamonds are well
shuffled. One card is then picked up at random (i) What is the probability that the card
drawn is the eight or the king ? (ii) If the king is drawn and put aside, what is the probability that the second card picked up is :(a) an ace ? (b) a king ?
From a pack of 52 playing cards, all cards whose numbers are multiples of 3 are removed.
A card is now drawn at random. What is the probability that the card drawn is (i) a face card (King, Jack or Queen) (ii) an even numbered red card ?
HYDROCHLORIC ACID HCL Study of Compounds Notes Questions & Answers Class 10 ICSE
HYDROCHLORIC ACID HCL Study of Compounds Notes Questions & Answers Class 10 ICSE
https://www.youtube.com/watch?v=Wr-y0TNnaPM
Preparation of HCl hydrogen chloride gas at laboratory
https://www.youtube.com/watch?v=HckPoNUz-ro
Mrs Pursers Chem Video: the HCl fountain experiment
SHORT STORIES - CLASS 10 ICSE - ENGLISH 1 - SAMPLE
SHORT STORIES - CLASS 10 ICSE - ENGLISH 1 - SAMPLE
Write an original story. Short story entitled - The Secret
Write an original short story entitled- The Narrow Escape
Write an original short story entitled - man is often ruined by his pride.
Write an original short story entitled - escaped.
Write an original short story, entitled - lost and found.
Write an original short story entitled- My sanity was restored.
Write an original short story entitled - regret, but too late to repent.
Write an original short story entitled- The Gift
Write an original short story entitled - I want, but don't always get.
I'll write an original short story entitled - The Hand That Rocks the Cradle rules the world.
Write an original short story based on a joint family.
Write an original short story entitled - self-help is the best help.
Write an original short story beginning with - one cold Frosty morning in the lonely island...
Write an original short story, which has the following characters - a capseller, a passerby, a stray dog, a mad man and a dwarf.
SELINA CHAPTER 20 SOLUTIONS_ EX 20B , 20E , 20F , 20G _MENSURATION
SELINA CHAPTER 20 SOLUTIONS_ EX 20B , 20E , 20F , 20G _MENSURATION
CLICKHEREFORNOTESPDF
EXERCISE 20(B)
10. A solid cone of height 8 cm and base radius
6 cm is melted and recast into identical cones,
each of height 2 cm and diameter 1 cm. Find
the number of cones formed.
11. The total surface area of a right circular cone of slant height 13 cm is 90 pi cm2.
Calculate :
i) its radius in cm.
(ii) its volume in cm3. [Take = 3-14] .
13. A vessel, in the form of an inverted cone, is
filled with water to the brim. Its height is
32 cm and diameter of the base is 25-2 cm.
Six equal solid cones are dropped in it, s
that they are fully submerged. As a result,
one-fourth of water in the original cone
overflows. What is the volume of each of the
solid cones submerged ?
'14 The volume of a conical tent is 1232 M3 and
the area of the base floor is 154 m2. Calculate
the
(i) radius of the floor,
(ii) height of the tent,
(iii) length of the canvas required to cover this conical tent if its width is 2 m.
EXERCISE 20 D
10. A solid metallic cone, with radius
6 cm and height 10 cm, is made of
some heavy metal A. In order to
reduce its weight, a conical hole is
made in the cone as shown and it
is completely filled with a lighter metal. THE
conical hole has a diameter of 6 cm and depth
cm. Calculate the ratio of the volume of metal
A to THE volume of the metal B in the solid.
EXERCISE 20(E)
3. From a rectangular solid of metal 42 cm by
30 cm by 20 cm, a conical cavity of diameter
14 cm and depth 24 cm is drilled out. Find :
(1) the surface area of remaining solid,
(ii) the volume of remaining solid,
(iii) the weight of the material drilled out
weighs 7 gm per cm^3.
EXERCISE 20(F)
4. A circus tent is cylindrical to a height of 8 m
surmounted by a conical part. If total height
of the tent is 13 m and the diameter of its base
is 24 m; calculate
i) total surface area of the tent,8.
(ii) area of canvas, required to make this tent
allowing 10% of the canvas used for folds
and stitching.
7. A wooden toy is in the shape of
a cone mounted on a cylinder as
shown alongside.
If the height of the cone is 24 cm,
the total height of the toy is 60 cm
and the radius of the base of the
cone = twice the radius of the base of the cylinder
= 10 cm: find the total surface area of the toy.
[Take pi= 3-14]
13. An open cylindrical vessel of internal diameter
cm and height 8 cm stands on a horizontal
table. Inside this is placed a solid metallic right
circular cone. the diameter of whose base is
cm and height 8 cm. Find the volume of
water required to fill the vessel.
If this cone is replaced by another cone,
whose height is 1 3/4 cm and the radius of whose
base is 2 cm, find the drop in the water level.
EXERCISE 20(F)
7. An iron pole consisting of a cylindrical portion
110 cm high and of base diameter 12 cm is
surmounted by a cone 9 cm high. Find
the mass of the pole, given that 1 cm^3 of iron
has 8 gm of mass (approx). (Take pi=355/113)
10. A cylindrical water tank of diameter 2.8 m and
height 4.2 m is being fed by a pipe of
diameter 7 cm through which water flows at
the rate of 4 m/s . Calculate, in minutes, the
time it takes to fill the tank.
11. Water flows, at 9 km per hour, through a
cylindrical pipe of cross-sectional area 25 cm^2.
If this water is collected into a rectangular
cistern of dimensions 7.5 m by 5 m by 4 m;
calculate the rise in level in the cistern in
1 hour 15 minutes.
15. An exhibition tent is in the form of a cylinder surmounted by a cone.
The height of the tent
surmounted by a cone. The height of the tent
above the ground is 85 m and height of the
cylindrical part is 50 m. If the diameter of the
base is 168 m, find the quantity of canvas
base is 168 m, find the quantity of canvas
required to make the tent. Allow 20% extra for
fold and for stitching. Give your answer to the
nearest m^2. [2001]
20. A conical tent is to accomodate 77 persons.
Each person must have 16m^3 of air to
breathe. Given the radius of th ent as 7 m,
is total find the height of the tent and also its curved
surface area.
ALUMINA EXTRACTION - GOOD VIDEOS LIST
ALUMINA EXTRACTION - GOOD VIDEOS LIST
How Are Aluminium Cans Recycled? | How Do They Do It?
https://www.youtube.com/watch?v=1u8gzoT-seg
How It's Made - Aluminium or Aluminum
https://www.youtube.com/watch?v=bI6OuGBx4nY
Extraction of Aluminium
Aluminium Extraction - Royal Society of Chemistry
CHAPTER 20 CYLINDER CONES CONCISE MATHEMATICS SELINA SOLUTIONS EX 20 B
CHAPTER 20 CYLINDER CONES CONCISE MATHEMATICS SELINA SOLUTIONS EX 20 B
CHAPTER 20 CYLINDER CONES CONCISE MATHEMATICS SELINA SOLUTIONS EX 20 A
CHAPTER 20 CYLINDER, CONES | CONCISE MATHEMATICS | SELINA SOLUTIONS | EX 20 A
SOLUTIONS_PDF_LINK
21 cm rolls without sliding for 41 seconds at
the rate of 9 complete rounds per second.
Find
(i) the distance traveled by the cylinder in
4-1/2 seconds, and
(ii) the area covered by the cylinder in 4
seconds.
EX20A Q14. Find the minimum length in cm and correct to
nearest whole number of the thin metal sheet
required to make a hollow and closed cylindrical
box of diameter 20 cm and height 35 cm.
Given that the width of the metal sheet is I m.
Also, find the cost of the sheet at the rate of
56 per m.
Find the area of metal sheet required, if 10% of it is wasted in cutting, overlapping, etc.
length 50 cm, external diameter 20 cm and
internal diameter 6 cm.
EX20A Q11. The height and the radius of the base of a
cylinder are in the ratio 3: 1. If its volume
is 1029 cm^3; find its total surface area.
EX20A Q12. The radius of a solid right circular cylinder
increases by 20% and its height decreases by
20%. Find the percentage change in its
volume.
EX20A Q15. 3080 cm^3 of water is required to fill a
cylindrical vessel completely and 2310 cm^3 of
water is required to fill it upto 5 cm below the top.
(i) radius of the vessel.
(ii) height of the vessel.
(iii) wetted surface area of the vessel when it is half-filled with water.
EX20A Q18. A circular tank of diameter 2 m is dug and the earth removed is spread uniformly all around
the tank to form an embankment 2 m in width
and 1.6 m in height. Find the depth of the
circular tank.
EX20A Q21. The sum of the height and the radius of a solid cylinder is 35 cm and its total surface area is cylinder is 35 cm and its total surface area is 3080 cm^2; find the volume of the cylinder.
EX20A Q22. The total surface area of a solid cylinder is
616 cm^2. If the ratio between its curved
surface area and total surface area is 1:2;
find the volume of the cylinder.
EX20A Q23. A cylindrical vessel of height 24 cm and
diameter 40 cm is full of water. Find the exact
number of small cylindrical bottles, each of
height 10 cm and diameter 8 cm, which can
be filled with this water.
EX20A Q24. Two solid cylinders, one with diameter 60 cm
and height 30 cm and the other with radius 30
cm and height 60 cm, are melted and masted
into a third solid cylinder of height 10 cm.
Find the diameter of the cylinder formed.
EX20A Q25. The total surface area of a hollow cylinder,
which is open from both the sides, is 3575
cm^2; area of its base ring is 357.5 cm^2 and its
height is 14 cm. Find the thickness of the
cylinder.
EX20A Q28. A closed cylindrical tank, made of thin iron- sheet, has diameter = 8.4 m and height 54 m.
How much metal sheet, to the nearest m^2, is
used in making this tank, if 1/15 of the sheet
actually used was wasted in making the tank ?
EQUATION OF A LINE | SELINA CONCISE MATHEMATICS CHAPTER 14 ICSE CLASS 10 NOTES PDF REVISION
EQUATION OF A LINE | SELINA CONCISE MATHEMATICS CHAPTER 14 ICSE CLASS 10 NOTES PDF REVISION
ICSE CLASS X Boards Revison MCQs with Solutions | Physics MACHINES Chapter 3 (BLOCK AND TACKLE) | 2021 Semester 1
ICSE CLASS X Boards Revison MCQs with Solutions | Physics MACHINES Chapter 3 (BLOCK AND TACKLE) | 2021 Semester 1
Q2. A pulley system has MA = 4. If a load of 10 kgf is pulled up a distance of 2 m in 10 s, calculate Power developed by the Effort.
Q3. The MA of a pulley is 5 and its efficiency is 80%. It is used to lift a load of 200 kgf to a height of 20m.