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MHT CET Physics question

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A tuning fork of frequency 'n' is held near the open end of tube which is closed at the other end and the lengths are adjusted until resonance occurs. The first resonance occurs at length and immediate next resonance occurs at length . The speed of sound in air is [MHT-CET 2021]

Answer: (C)

Solution

Successive resonances differ by , so and ; the

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Question ID VK-070569