A person feels 2.5% difference of frequency of a motor-car horn. If the motor-car is moving to the person and the velocity of sound is 320 m/sec, then the velocity of car will be
Text Solution
Verified by ExpertsThe correct answer is:
A
By Doppler’s formula 
Since, source is moving towards the listener so 
.
If n = 100 then n' = 102.5
⇒ ⇒ 
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