> Q. A plane progressive wave is given by y= 2 cos 6.284(330 t – x). What is period of the wave? – LIVE ANSWER TODAY

Q. A plane progressive wave is given by y= 2 cos 6.284(330 t – x). What is period of the wave?

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A plane progressive wave is given by y= 2 cos 6.284(330 t – x). What is period of the wave?

Solution:

We have the progressive wave given by

$hspace30mm y = 2 cos , 6.284 (330 t – x)$

$hspace30mm = 2 cos , 2 pi (330 t – x)$

$hspace30mm = 2 cos (2 pi times 330 t – 2 pi x)$

$hspace30mm omega = 2 pi times 330,$

and time period T = $frac{2 pi}{omega} = frac{1}{330} s.$

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