Thank you for reporting, we will resolve it shortly
Q.
A plane progressive wave is given by y= 2 cos 6.284(330 t - x). What is period of the wave?
Electromagnetic Waves
Solution:
We have the progressive wave given by
$ y = 2 \cos \, 6.284 (330 t - x)$
$ = 2 \cos \, 2 \pi (330 t - x)$
$ = 2 \cos (2 \pi \times 330 t - 2 \pi x)$
$ \omega = 2 \pi \times 330,$
and time period T = $\frac{2 \pi}{\omega} = \frac{1}{330} s.$