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MHT CET Physics question

PhysicsWavesMHT CET

'n' number of waves are produced on a string in 't' second. Now the tension in the string is doubled (Assume length and radius constant), the number of waves produced in 't' second for the same harmonic will be [MHT-CET 2014]

Answer: (D)

Solution

Initial frequency is and , so doubling the tension gives ;

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Question ID VK-070644