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Accelerate JEE 2020: Waves Class 4 (13.08.2019)

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Question 1

The disturbance y (x, t) of a wave propagating in the positive x-direction if given by

at time t = 0 and by

at t = 2 s, where x and y are in meters. The shape of the wave disturbance does not charge during the propagation. The velocity of wave in m/s is

Question 2

If a progressive wave is represented as

Where x is in metre and t is in second, then the distance travelled by the wave in 5 s is

Question 3

A transverse wave described by y = (0.02m) sin [(1.0 m^-1) x + (30s^-1) t] propagates on a stretched string having a linear mass density of 1.2 × 10^-4 kg/m. Find the tension in the string.

Question 4

A string of length 2x is streched by 0.1x and the velocity of transverse wave along it is v. When it is streched by 0.4x, the velocity of the wave is-

Question 5

Two strings A and B, made of same material are stretched by same tension. The radius of string A is double of the radius of B. A transverse wave travels on A with speed v_A and on B with speed v_B. The ratio

is -

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Aug 13JEE & BITSAT