An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency? - VgyanHub

Question:

An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency?

Options :

(a) zero
(b) 0.5 %
(c) 5 %
(d) 20 %

Answer :

(d) 20 %

Answer Steps :

step 1

step 2

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