## 1A.3

$c=\lambda v$

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Jessica Chen 2C
Posts: 103
Joined: Thu Jul 11, 2019 12:17 am

### 1A.3

The question is "which of the following happens when the frequency of electromagnetic radiation decreases?"
And I picked (c) "The extent of the change in the electrical field at a given point decreases" by process of elimination, because I knew the other answers weren't correct. But it also asks that you explain your reasoning, so why is (c) the correct answer?

JohannaPerezH2F
Posts: 94
Joined: Wed Sep 18, 2019 12:18 am

### Re: 1A.3

C is correct because the electrical field corresponds to the amplitude; and so as the frequency decreases the waves broaden and the extent of the change decreases.

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