Question 1.3  [ENDORSED]


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Haya Rabadi 1F
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Question 1.3

Postby Haya Rabadi 1F » Sun Apr 22, 2018 3:31 pm

What does the answer choice (c) The extent of the change in the electrical field at a given point decreases mean?

Chem_Mod
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Re: Question 1.3  [ENDORSED]

Postby Chem_Mod » Sun Apr 22, 2018 3:33 pm

You need to post all relevant information needed so one does not have to open a book to understand this post. Please search the forum as there have been many posts on this problem already.

alexagreco1A
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Re: Question 1.3

Postby alexagreco1A » Sun Apr 22, 2018 7:42 pm

I have this question as well. The question asks: Which of the following happens when the frequency of electromagnetic radiation decreases? Explain your reasoning. Part c says: The extent of the change in the electrical field at a given point decreases.

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Re: Question 1.3

Postby Chem_Mod » Sun Apr 22, 2018 8:09 pm

When a electromagnetic wave is propagating, the wave has an electric and a magnetic field component that is perpendicular to the direction the wave travels. The amplitude of the wave will be related to the magnitudes of this field. I hope this information helps you answer the question.

arina_m 1A
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Re: Question 1.3

Postby arina_m 1A » Sun Apr 22, 2018 8:59 pm

With regards to this question, how exactly would the decrease in the frequency of electromagnetic radiation contribute to a decrease in the extent of the change in the electrical field? I can understand how these two aspects are related but why does the decrease in frequency affect the electrical field this way?

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Re: Question 1.3

Postby Chem_Mod » Sun Apr 22, 2018 9:03 pm


JulietOttenberg-1C
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Re: Question 1.3

Postby JulietOttenberg-1C » Sun Apr 22, 2018 10:27 pm

A change in the magnetic field implies a change electromagnetic radiation. When the frequency decreases, there are less waves in an amount of time, or the waves become less "frequent". They are moving slower, and therefore less waves of radiation will interact with the magnetic field and cause less of a change in the field.


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