Waves questions
1337 published questions with worked solutions.
- If a stationary observer notes a change of 25% in the frequency of a whistle of an engine coming towards him, then the velocity...
- An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60 ms^ -1 towards a hill from which an echo is heard....
- The difference between the apparent frequency of a source of sound as perceived by the observer during its approach and recession...
- Two cars are approaching each other with same speed of 20 m/s. A man in car A fires bullets at regular intervals of 10 seconds....
- A tuning fork whose frequency is given by the manufacturer as 512 Hz is being tested using an accurate oscillator. It is found...
- A source of sound emitting a note of frequency 90 Hz moves towards an observer with speed equal to ( 1 10 )^ th of velocity of...
- A train A is travelling at a speed of 108 km hr^ -1 . The train approaches another train B standing on the platform. The engine...
- Two aeroplanes A and B, each moving with a speed of 720 km/hour, are moving directly away from each other. Aeroplane A emits a...
- A person is standing on a railway platform. An engine blowing a whistle of frequency 640 Hz approaches him with a speed of 72...
- A wave is expressed by the equation y = 0.5 [ (0.01x - 3t)], where y and x are in metre and t is in second. The speed of...
- An engine driver moving towards a wall with a velocity of 60 m/s emits a note of 1400 Hz. Speed of sound in air is 340 m/s. The...
- Statement 1: On reflection from a rigid boundary (denser medium), there is a complete reversal of phase Statement 2: This is...
- The well known example of longitudinal wave is [MP PMT 1986, AFMC 1997]
- The equation of the progressive wave is y = a 2 (nt - x 5 ). The ratio of maximum particle velocity to wave velocity is
- The equation of a wave travelling in a string can be written as y = 3 (100t - x). Its wavelength is
- When a tuning fork produces sound waves in air, which one of the following is same in the material of tuning fork as well as in...
- The displacement y of a wave travelling in the x-direction is given by y = 10^ -4 (600t - 2x + 3 ) metres, where x is expressed...
- The wave described by y = 0.25 (10 x - 2 t) where x and y are in meters and t in seconds, is a wave travelling along the [CBSE...
- A plane progressive wave is represented by the equation y = 0.1 (200 t - 20 x 17 ) where y is displacement in m, t in second and...
- The equation of a wave is given as y = 0.07 (12 x - 3000 t), where x is in metre and t is in s, then the correct value is [UPSEAT...
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