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Question

A radar sends a signal to an aeroplane at a distance 45 km away with a speed of 3 x 108 m/s.

The time interval after which the signal will be received back from the Aeroplane is:


A

3 x 10 -4 s

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B

6 x 10 -4 s

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C

1.5 x 10 -4 s

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D

5 x 10 -4 s

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