CAPE Physics Unit 1 · 2007 · Paper 1 · Question Q25
Which of the following is NOT a condition necessary for two-source destructive interference of sound waves to be observed?
- (A)Sources must be coherent.
- (B)Amplitudes of the waves must be similar.
- (C)Waves overlapping must have a path difference of one wavelength.
- (D)Waves overlapping must be out of phase by
\piradians.
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