A car sounding a horn of frequency 100 Hz passes an observer. The ratio

A car sounding a horn of frequency 100 Hz passes an observer. The ratio of frequencies of the horn noted by the observer, before and after passing of car is 11:9. if the speed of sound is v, the speed of the car is

Options

(a) v/10
(b) v/2
(c) v/5
(d) v

Correct Answer:

v/10

Explanation:

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