then the velocity of the car

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A car is moving towards a high cliff. The car driver sounds a horn of frequency f. The reflected sound heard by the driver has the frequency 2f. If v be the velocity of sound, then the velocity of the car, in the same velocity units will be :
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Aug
A car is moving towards a high cliff. The car driver sounds a horn of frequency f. The reflected sound heard by the driver has the frequency 2f. If v be the velocity of sound, then the velocity of the car, in the same velocity units will be : A car is moving towards a [...]
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Tags: A car is moving towards a high cliff. The car driver sounds a horn of frequency f. The reflected sound heard by the driver has the frequency 2f. If v be the velocity of sound , in the same velocity units will be : , then the velocity of the car ,