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Question
What should be the length of a closed pipe to produce resonance with a sound wave of wavelength 62 cm, in fundamental mode? Neglect end correction.
Options
31 cm
20.6 cm
15.5 cm
46.5 cm
MCQ
Solution
In a closed pipe in fundamental mode, the length of the pipe is `lambda/4`.
∴ `ℓ = 62/4 = 15.5` cm
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Superposition of Waves
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