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A source of sonic oscillations with freq...

A source of sonic oscillations with frequency `v_(0)=100Hz` moves at right angles to the wall with a velocity `u=0.17 m//s`. Two stationary receivers `R_(1)` and `R_(2)` are located on a straight line, coinciding with the trajectory of the source , in the following succession :` R_(1)-` source `-R_(2)-` wall. Which receiver registers the beatings and what is the beat frequency ? The velocity of sound is equal to `upsilon= 340 m//s`.

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Verified by Experts

The correct Answer is:
`R_(1), f_(beat) = 2f_(0)vu//(v^(2) - u^(2)) approx (2f_(0)u)/(v) = 1.0 Hz`
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