Question

The speed of sound in air is v. The velocity of a source of sound whose frequency appears to be doubled to a stationary observer is

Answer 1

Answer:

When the source moves towards a stationary observer, the apparent frequency of sound increases by Doppler effect and is given by

n 1

=n⋅ v−v sv

where v is the velocity of sound, v s

is the velocity of the source of sound and n is the original frequency of sound emitted by the source.

hope help u

Answer 2

Explanation:

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