Physics, asked by sahilpatil5040, 4 months ago

A car while whistling a frequency of f is approaching a stationary wall with velocity v .The velocity of sound in air is c.The number of beats heard by the driver per second is
A) cf/c-v
B) 2vf/v+c
C)cf/v+c
D)2vf/c-v

Answers

Answered by suhani4289

0

Answer:

hi

correct option is a) cf/ c-v

I hope it will help you

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