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A sound of frequency 1000 Hz is emitted...

A sound of frequency 1000 Hz is emitted from a roadside siren. A car moving along the road with a unifrom velocity of 50 km . `h^(-1)` crosses the siren . Calculate the frequency of the siren relative to the pasenger of the car before and after crossing the siren . (Velocity of sound = 340 m ` s^(-1)`)

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The correct Answer is:
[1041 Hz , 959 Hz]
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