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MHT CET Physics question

PhysicsWavesMHT CET

Four sound sources produce the following four waves (i) (ii) (iii) (iv) Superposition of which two waves gives rise to interference?

Answer: (C)

Solution

Sustained interference needs waves of the same frequency and a constant phase difference; only (i) and (iii) both have angular frequency (and constant

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Question ID VK-070244