What would be the resultant intensity at a point of destructive interference, if there are two identical coherent waves of intensity I0 producing an interference pattern?(a) 5 I0(b) 2 I0(c) I0(d) zeroThis question was addressed to me in a national level competition.The question is from Wave Optics in portion Wave Optics of Physics – Class 12

What would be the resultant intensity at a point of destructive interf

1.	What would be the resultant intensity at a point of destructive interference, if there are two identical coherent waves of intensity I0 producing an interference pattern?(a) 5 I0(b) 2 I0(c) I0(d) zeroThis question was addressed to me in a national level competition.The question is from Wave Optics in portion Wave Optics of Physics – Class 12
Answer» The CORRECT answer is (d) zero Best explanation: Resultant intensity at the point of DESTRUCTIVE interference will be as follows: I = I0 + I0 + 2√I0 I0 COS 180^o I = 0 Therefore, the VALUE of the resultant intensity at a point of destructive interference is zero.

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