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Two sources of intensity 2I and 8I are u...

Two sources of intensity 2I and 8I are used in an interference experiment. The intensity at a point where the waves from two sources superimpose with a phase difference of (a) zero (b) `pi//2 and (c ) pi` is

A

`18I, 10I, 2I`

B

`5I, 4I, I`

C

`2I,I,(I)/(2)`

D

`2I,10I,18I`

Text Solution

Verified by Experts

The correct Answer is:
A
`I = I_(1)+I_(2)+2sqrt(I_(1))sqrt(I_(2)) cos theta`
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