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MHT CET Physics question

PhysicsWavesMHT CET

When two tuning forks are sounded together produce x beats/s. The frequency of A is . The fork B is loaded with little wax then x number of beats per second are produced, then the frequency of fork B before loading will be

Answer: (B)

Solution

Initially ; loading lowers , and to give the same beats again must have been above and fallen to , so

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Question ID VK-069957