Sound WavesHard
Question
A person observes a change of 2.5% in frequency of sound of horn of a car. If the car is approaching forward the person & sound velocity is 320 m/s, then velocity of car in m/s will be approximately : -
Options
A.8
B.800
C.7
D.6
Solution
ᐃf = fapp - fo = fo 
- fo
⇒
⇒ vs = 
= 8m /s
- fo⇒
⇒ vs = = 8m /sCreate a free account to view solution
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