Sound WavesHard
Question
Choose the CORRECT option(s) :-
Options
A.Waves from two coherent sources may be in same phase always at some points.
B.Waves from two incoherent sources have fixed phase difference at a point always
C.Initial phase difference between the waves emitted by two coherent sources may vary with time.
D.Waves from two coherent sources may be in opposite phase always at some points.
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