Quick Angular frequency question

AI Thread Summary
To find the angular frequency (w) of an electromagnetic wave from the wave equation Esin(kx-wt), the relationship w = v/k can be used, where v is the speed of light. Given that the speed of light is a constant, substituting it into the equation allows for the calculation of w without needing to find the period (T). The approach of solving for w using the speed equation is confirmed to be correct. Thus, the angular frequency can be determined directly from the wave's wave number (k) and the speed of light.
sarahaha288
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Homework Statement



I am trying to find the angular frequency of an electromagnetic wave given a general wave equation in standard form
Esin(kx-wt)
I am given the variable k, and i need to find the angular frequency w. I am not sure how to do this without finding the period, which i can't find without angular velocity.

Homework Equations



w=1/T

The Attempt at a Solution


I tried solving the speed equation v=w/k for w and using the speed of light for the speed, but I'm not sure if that is right...
 
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Your attempt at a solution is correct.
 
Alright, thanks so much!
 

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