A plane progressive wave is given by $y=2 \cos 2 \pi(330 t-x) m$. The frequency of the wave is:
JEE MAIN 2024, Diffcult
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$y=2 \cos 2 \pi(330 t-x) m$
$y=A \cos (\omega t-k x)$
$\text { by comparing } \omega=2 \pi \times 330$
$2 \pi f=2 \pi \times 330$
$f=330$
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