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NEET UG PHYSICS MCQ: WAVES

1 Easy
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Application +4 | -1
A resonance air column of length 20 cm20 \mathrm{~cm} resonates with a tuning fork of frequency 450 Hz450 \mathrm{~Hz}. Ignoring the correction, the velocity of sound in air will be
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Correct option: D
360 m/s360 \mathrm{~m} / \mathrm{s}
Option D (360 m/s360 \, m/s) is correct because the first resonance in an air column closed at one end occurs when the length of the column is one-quarter of the wavelength, allowing us to calculate the speed of sound.

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