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CGP EDU Academic Team
Published on: September 12, 2026
Progressive wave of sound is represented by $y = a \sin \left[ 400 \pi t - \pi x / 6.85 \right]$ where x is in m and t is in sec. Frequency of the wave will be
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Verified by ExpertsThe correct answer is:
A
$n = \frac{\omega}{2\pi} = \frac{400\pi}{2\pi} = 200 \mathrm{Hz} \quad (\mathrm{As} \ \omega = 400\pi)$
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