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The ratio of intensities of two waves is...

The ratio of intensities of two waves is 16:9. What is the ratio of amplitudes? If these two waves produce interference, then find the ratio of maximum and minimum intensities.

A

`2 : 1`

B

`1 : 2`

C

`4 : 1

D

`1 : 4`

Text Solution

Verified by Experts

The correct Answer is:
A
we know `I alpha A^(2)`.
`rArr (I_(1))/(I_(2))=(A_(1)^(2))/(A_(2)^(2))`
`rArrsqrt(4/(1))=(A_(1))/(A_(2)) rArr A_(1):A_(2)=2:1`
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