Electrical Field

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andrewcj 2C
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

Electrical Field

Postby andrewcj 2C » Sat Oct 05, 2019 12:52 pm

Can someone explain 1.3 to me? The question is as follows:
Which of the following happens when the frequency of electromagnetic radiation decreases? Explain your reasoning.
(a) The speed of the radiation decreases.
(b) The wavelength of the radiation decreases.
(c) The extent of the change in the electrical field at a given point decreases.
(d) The energy of the radiation increases.

I got c by process of elimination, but I'm not sure what the answer is actually saying. Can someone explain the electrical field for light is?

Katherine Wu 1H
Posts: 104
Joined: Fri Aug 30, 2019 12:15 am
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Re: Electrical Field

Postby Katherine Wu 1H » Sat Oct 05, 2019 2:40 pm

the electrical field corresponds to the amplitude; as the frequency decreases the waves broaden and the extent of the change (slope of the wave) decreases

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