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A source of sound moves towards an obser...

A source of sound moves towards an observe.

A

The frequency of the source is increased

B

The velocity of sound in the medium is increased

C

The wavelength of sound in the medium towards the observer is decreased

D

The amplitude of vibration of the particle is increased

Text Solution

Verified by Experts

The correct Answer is:
B
Because of the velocity of sound source, actual frequency of source, velocity of sound and amplitude of vibration are unaffected. Only appeared frequency and wavelength of received wave may change
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