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MHT CET Physics question

PhysicsWavesMHT CET

A hollow pipe of length 0.8 m is closed at one end. At its open end a 0.5 m long uniform string is vibrating in its second harmonic and it resonates with the fundamental frequency of the pipe. If the tension in the wire is 50 N and the speed of sound is 320 m/s, the mass of the string is [MHT-CET 2021]

Answer: (D)

Solution

Pipe: Hz; string second harmonic gives

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Question ID VK-070538