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MHT CET Physics question

PhysicsWavesMHT CET

The frequencies of three tuning fork A, B and C are related as . When the forks A and B are sounded together, the number of beats produced per second is ''. When forks A and C are sounded together the number of beats produced per second is ''. How may beats are produced per second when forks B and C are sounded together? [MHT-CET 2021]

Answer: (C)

Solution

and , so ; (a) is negative since , and

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Question ID VK-068713