Waves questions
1337 published questions with worked solutions.
- The disturbance y(x, t) of a wave propagating in the positive x-direction is given by y = 1 1 + x^2 at time t = 0 and by y = 1 [1...
- When two sound waves travel in the same direction in a medium, the displacements of a particle located at ' x ' at time ' t ' is...
- A sonometer wire of length 114 cm is fixed at both the ends. Where should the two bridges be placed so as to divide the wire into...
- n identical waves each of intensity I_0 interfere with each other. The ratio of maximum intensities if the interference is (i)...
- A transverse wave is represented by : y = 10 ( 2 T t - 2 x ) For what value of the wavelength the wave velocity is twice the...
- Two factories are sounding their sirens at 800 Hz. A man goes from one factory to other at a speed of 2 m/s. The velocity of...
- A source of sound A emitting waves of frequency 1800 Hz is falling towards ground with a terminal speed v. The observer B on the...
- The total length of a sonometer wire fixed between two bridges is 110 cm. Now, two more bridges are placed to divide the length...
- In interference and diffraction, the light energy is redistributed. If it reduces in one region, producing a dark fringe, it...
- For a travelling harmonic wave y(x, t) = 2.0 2 (10t - 0.0080x + 0.35), where x and y are in cm and t in s. The phase difference...
- For sound waves, if the number of nodes for the 5^ th harmonic of an open-ended pipe is n and that for the 9^ th harmonic of the...
- A train is moving on a straight track with speed 20 m s^ -1 . It is blowing its whistle at the frequency of 1000 Hz. The...
- A bat moving at 10 m s^ -1 towards a wall sends a sound signal of 8000 Hz towards it. On reflection, it hears a sound of...
- Two engines pass each other moving in opposite directions with uniform speed of 30 m/s. one of them is blowing a whistle of...
- A toy-car, blowing its horn, is moving with a steady speed of 5 m s^ -1 , away from a wall. An observer, towards whom the toy car...
- SI unit of intensity of wave is
- Statement 1: In the relation n= 1 2l T/m , where the symbols have their standard meaning, m represents the total mass. Statement...
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