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A boy watches a jet plane flying from no...

A boy watches a jet plane flying from north to south. When the jet is just seen above his head, the sound of jet appears to reach him makin some angle with horizontal from north.If the velocity of jet is v/2, then find the angle.

A

`60^(@)`

B

`30^(@)`

C

`45^(@)`

D

`15^(@)`

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The correct Answer is:
A
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