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qUESTIONS

A progressive wave of frequency 50 Hz is travelling with velocity 350 m/s through a medium. The change in phase at a given time interval of 0.01 s is

An observer standing near the seashore observes 54 waves per minute. If the wavelength of the water wave is 10 m then the velocity of water wave is.

The wavelength of a wave in a medium is 0.5 m. The phase difference between the oscillations at two points in the medium due to this wave is π/5 What is the minimum distance between these points?

A source of sound is moving towards a stationary listener with velocity ‘vS’ and then moves away with velocity ‘vS’. Assume that the medium through which the sound waves travel is at rest. If ‘v’ is the velocity of sound and ‘n’ is the frequency emitted by the source, then the difference between the apparent frequencies heard by the listener is

The equation of a progressive wave is y = a sin 2π (nt-x/5). The ratio of maximum particle velocity to the wave velocity is

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