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Three waves of equal frequency having am...

Three waves of equal frequency having amplitudes `10mum`, `4mum`, `7mum` arrive at a given point with successive phase difference of `pi//2`, the amplitude of the resulting wave in `mum` is given by

A

10

B

5

C

15

D

20

Text Solution

Verified by Experts

The correct Answer is:
B

Resultant Amplitude=`sqrt(3^(2)+4^(2))=5 mu m`
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