Speed of electromagnetic radiation

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Katherine Brenner 3H
Posts: 73
Joined: Wed Sep 18, 2019 12:18 am

Speed of electromagnetic radiation

Postby Katherine Brenner 3H » Fri Nov 01, 2019 5:20 pm

Is the speed of electromagnetic radiation always constant?- even when frequency decreases or wavelength decreases?

Anna Wu 1H
Posts: 51
Joined: Sat Aug 17, 2019 12:16 am

Re: Speed of electromagnetic radiation

Postby Anna Wu 1H » Fri Nov 01, 2019 5:23 pm

Yes, the speed is always constant. This way, you can solve for the frequency of a wave given the wavelength and vice versa.

Chris Tai 1B
Posts: 69
Joined: Sat Aug 24, 2019 12:16 am

Re: Speed of electromagnetic radiation

Postby Chris Tai 1B » Sat Nov 02, 2019 5:37 pm

This speed is always the speed of light, which is about 3x10^8 m/s. The equation that we can use to find either wavelength or frequency of electromagnetic radiation is (wavelength)(frequency) = (speed of light).


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