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Question

Pick an application where Doppler effect is used:

A
LASER
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B
RADAR
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C
MRI scan
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D
Rear-view mirror
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Solution

The correct option is B RADAR
In RADAR (RAdio Detection and Ranging), radio waves are sent, and the reflected waves are detected by the receiver of the RADAR station. From the frequency change, the speed and location of the aeroplanes and aircrafts are tracked.

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