A) Coherence of the sources is an essential condition for interference
B) The minima of the interference pattern need not be of zero intensity
C) Interference simply redistributes light energy, without destroying any of it
D) The minima of the interference pattern must always be of zero intensity
Correct Answer: D
Solution :
Interference resultant intensity is maximum while at some other points it is minimum, the minima of the inferference pattern must always be of zero intensity.
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