A motorcycle starts from rest and accelerates along a straight path at 
. At the staring point of the motorcycle there is a stationary electric siren. How far has the motorcycle gone when the driver hears the frequency of the siren at 94% of its value when the motorcycle was at rest? (speed of sound 
)
Text Solution
Verified by ExpertsThe correct answer is:
B
For motor cycle, 
Observer is in motion and source is at rest, then apparent frequency
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