MHT CET Physics question
The frequency of a stretched uniform wire of length 'L' under tension is in resonance with the fundamental frequency of air column in a closed pipe of the same length. If the tension in the wire is increased by 8 N, it is in resonance with the first overtone of the same closed pipe. The initial tension in the wire is [MHT-CET 2020]
Answer: (C)
Solution
The first overtone of a closed pipe is 3 times its fundamental and , so
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