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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

7

B

6

C

5

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
`R=sqrt(3^2+4^2)=5mm`
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DISHA PUBLICATION-WAVES-EXERCISE 1 CONCEPT BUILDER
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