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When two progressive waves of intensity ...

When two progressive waves of intensity `I_(1)` and `I_(2)` but slightly different frequencies superpose, the resultant intensity fluctuates between :-

A

`(sqrt(I_(1))+sqrt(I_(2)))^(2)" and "(sqrt(I_(1))-sqrt(I_(2)))^(2)`

B

`(sqrt(I_(1))+sqrt(I_(2)))" and "(sqrt(I_(1))-sqrt(I_(2)))`

C

`(I_(1)+I_(2))" and "(sqrt(I_(1))-sqrt(I_(2)))`

D

`(I_(1))/(I_(2))"and"(I_(2))/(I_(1))`

Text Solution

Verified by Experts

The correct Answer is:
A
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