1.

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

Answer»

ZERO
`SQRT(2)`
`2`
`4`

ANSWER :D


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