1.

Two coherent sources of intensity ratio beta interfere. Then the value of (I_(max)-I_(min))(I_(max)+I_(min)) is

Answer»

`(1+BETA)/sqrtbeta`
`sqrt((1+beta)/beta)`
`(1+beta)/(2sqrtbeta)`
`(2sqrtbeta)/(1+beta)`

SOLUTION :`A_1/A_2=sqrtbeta and I_(MAX)=(A_1+A_2)^2 and I_(MIN)=(A_1-A_2)^2`


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