Two tuning forks, each of frequency 340 Hz, are moving with equal velocity with respect to an observer at rest. One fork is approaching and another is receding away from the observer. The observer is listening beats of frequency 3Hz. If the velocity of sound is 340 m/s then the speed of fork will be –
Text Solution
Verified by ExpertsThe correct answer is:
D
f 1 = 
,
⇒ f 2 = 
f 1 f 2 = 3 = 
⇒ vs = 1.5
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