A listener approaches a stationary source of sound at 20% of the speed of sound in air. The percentage increase in the apparent frequency is - VgyanHub

Question:

A listener approaches a stationary source of sound at 20% of the speed of sound in air. The percentage increase in the apparent frequency is

Options :

(a) 5 %
(b) 10 %
(c) 20 %
(d) 40 %

Answer :

(c) 20 %

Answer Steps :

step 1

step 2

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