Questions
A motor cycle starts from rest and accelerates along a straight path at 2 m/s2. At the starting point of the motor cycle there is a stationary electric siren. How far has the motor cycle gone when the driver hears the frequency of the siren at 94% of its value when the motor cycle was at rest? (Speed of sound = 330 ms-1)
detailed solution
Correct option is A
Apparent frequency using v2 = u2+2as, we getTalk to our academic expert!
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An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity
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