Question

a women is traveling in a car at a speed of 25m/s. she is moving away from a source producing a sound of 512 Hz

Answer 1

hey user !!!!!

given ::-
wave speed = 25m/s.
frequency= 512 HZ.

Theirfore,, wave length = wave speed ÷frequency
= 25÷512= 0.048828125.

now wave length = 0.04 m(approx)


now frequency = wave speed ÷ wave length
= 25m/s ÷ 0.04= 625 HZ..

Theirfore,, The requried frequency = 625 HZ.

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