Pick up the correct statement from to following: – McqOptions

MCQOPTIONS

1.	Pick up the correct statement from to following:
A.	For complete temporal coherence, the waves must be mono chromatic.
B.	For spatial coherence, the phase difference between two points in space is constant with time.
C.	Superposition of the coherent waves produce interference
D.	All of these
Answer» E.

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