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MHT CET 2022 Physics question

PhysicsWavesMHT CET 2022

The first overtone of the vibrating air column of closed pipe has the same frequency as the second overtone of an open pipe 1.5 m long. The length of the closed pipe is

Answer: (B)

Solution

First overtone of a closed pipe of length is its 3rd harmonic: . Second overtone of an open pipe of length m is its 3rd harmonic: . Equating,

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Question ID VK-095885