Two coherent monochromatic light sources are located at two vertices of an equilateral triangle. If the intensity due to each of the sources independently is 
at the third vertex, the resultant intensity due to both the sources at that point (i.e., at the third vertex) is:
A
Zero
B
C
2
D
4
Text Solution
Verified by ExpertsThe correct answer is:
D
Here, 
At 
vertex of equilateral triangle, the waves from two sources reach in phase.
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