A plane progressive wave is given by $y=2 \cos 6.284(330 \mathrm{t}-\mathrm{x})$. What is period of the wave?

Question

A plane progressive wave is given by $y=2 \cos 6.284(330 \mathrm{t}-\mathrm{x})$. What is period of the wave?, $\frac{1}{330} \mathrm{~S}$, $2 \pi \times 330 \mathrm{~S}$, $(2 \pi \times 330)^{-1} \mathrm{~S}$, $\frac{6.284}{330} \mathrm{~S}$

MARKS App · Accepted Answer

Hints: $y=2 \cos 2 \pi(330 t-x)$ $\omega=2 \pi \times 330$ $\therefore \mathrm{T}=\frac{1}{330} \mathrm{~s}$

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