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The frequency of a radar is 780 MHz. Aft...

The frequency of a radar is 780 MHz. After getting reflected from an approaching aeroplane, the apparent frequency is more than the actual frequency by 2.6 kHz. The aeroplane has a speed of

A

`0 . 25 km//sec`

B

`0 . 5 km //sec`

C

`1 km //sec`

D

`2 km//sec`

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The correct Answer is:
B
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MOTION-SOUND WAVES-Exercise - 2
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