Waves

JEE Main 2009 · Annual, Paper 1 · Q8516

PhysicsMedium85×since 2002Q8516

A motor cycle starts from rest and accelerates along a straight path at

2m/{s^2}.

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\,m{s^{ - 1}}

)

Waves

JEE Main 2009 · Annual, Paper 1 · Q8516

PhysicsMedium85×since 2002Q8516

A motor cycle starts from rest and accelerates along a straight path at

2m/{s^2}.

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\,m{s^{ - 1}}

)

Waves

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