Coherence of two electromagnetic waves takes place if their phase difference is: A) Constant in time (B) Constant in space (C) Constant in time and space (D) None of these

Coherence of two electromagnetic waves takes place if their phase difference is:
A) Constant in time
(B) Constant in space
(C) Constant in time and space
(D) None of these
by

1 Answer

Answer :

Answer: Option C
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