NEET UG PHYSICS MCQ: WAVES

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The minimum audible wavelength at room temperature is about

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Correct option: D

20\,\,mm

Option D (

20 \, mm

) is correct because the minimum audible frequency is around 20 Hz, and using the speed of sound (approximately 340 m/s), the corresponding wavelength is about 17 meters. The maximum audible frequency is around 20 kHz, which gives a wavelength of approximately 17 mm or roughly 20 mm.

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