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Two coherent monochormatic light source ...

Two coherent monochormatic light source are located at two vertices of an equilateral trangle. If the intensity due to each of the source independently is `1Wm^(-2)` at the third vertex. The resultant intensity due to both the sources at that point (i.e at the third vertex) is (in `Wm^(-2)` )

A

Zero

B

`sqrt2 W//m^2`

C

`2W//m^2`

D

`4W//m^2`

Text Solution

Verified by Experts

`I=I_1+I_2+2sqrt(I_1+I_2) cos phi and phi=0^@`
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