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Two coherent sources have intensity rati...

Two coherent sources have intensity ratio of 100 : 1, and are used for obtaining the phenomenon of interference. Then the ratio of maximum and minimum intensity will be –

A

`100:1`

B

`121:81`

C

`1:1`

D

`5:1`

Text Solution

Verified by Experts

The correct Answer is:
B
`(I_("max"))/(I_("min")) = ((sqrt(I_(1)) + sqrt(I_(2)))i^(2))/((sqrt(I_(1)) - sqrt(I_(2)))i^(2)) = ((sqrt(100I_(0))+sqrt(I_(0)))^(2))/((sqrt(100I_(0))-sqrt(I_(0)))^(2)) = (121)/(81)`
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