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Showing posts with label Wave. Show all posts
Showing posts with label Wave. Show all posts

NCERT CLASS 11 WAVES EXEMPLAR SOLUTIONS DOWNLOAD PDF

 NCERT CLASS 11 WAVES EXEMPLAR SOLUTIONS DOWNLOAD 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.
(c) Frequency of the wave is 5.7 Hz.
(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
(c) frequency
(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
(c) λ/2
(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,
(c) λ/2,
(d) 3λ/4
15:10

 



MAHARASHTRA BOARD CLASS 12 PHYSICS CHAPTER 6 SUPERPOSITION OF WAVES SOLUTIONS

 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)