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MHT CET 2023 Physics question

PhysicsWavesMHT CET 2023

41 tuning forks are arranged in increasing order of frequency such that each produces 5 beats/second with next tuning fork. If frequency of last tuning fork is double that of frequency of first fork. Then frequency of first and last fork is

Answer: (B)

Solution

There are 41 forks, so there are 40 successive gaps, each of 5 Hz (5 beats per second between neighbours). Hence . Given , we get ,

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Question ID VK-097386