Memorizing light

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Memorizing light

Postby DMuth_1J » Tue Oct 22, 2019 11:19 am

Hello, I was wondering if we are expected to memorize the wavelengths / frequencies of the different kinds of light. I know we are expected to remember that the visible spectrum is around 400-700 nm, but what about the others like UV, x-ray, y-ray, infrared, etc. Will we need to memorize the shortest to longest order?

Jainam Shah 4I
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Re: Memorizing light

Postby Jainam Shah 4I » Tue Oct 22, 2019 11:45 am

I think it would be a good idea to know the ranges of each spectrum for the light spectrum. You would not have to know specific wavelengths for colors I believe, but you might want to know red is around 700 nm and violet is the shortest one being at 400 nm.

Justin Seok 2A
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Re: Memorizing light

Postby Justin Seok 2A » Tue Oct 22, 2019 12:30 pm

It may be useful to generally know the order of common waves, like the fact that ultraviolet is lower wavelength than visible light for things like Lyman series or infrared is higher wavelength than visible light. It probably won't be super important to remember though.

Tai Metzger 3K
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Re: Memorizing light

Postby Tai Metzger 3K » Tue Oct 22, 2019 1:15 pm

I find it useful to know the order of frequencies for different types of EM radiation (e.g. radiowaves<microwaves<infrared<visible light<UV<xray<gamma rays).
Additionally, I think you are correct in thinking that we should know that visible light is 400-700 nm.

Abby Soriano 1J
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Re: Memorizing light

Postby Abby Soriano 1J » Tue Oct 22, 2019 2:33 pm

My old high school teacher had a kind of silly yet helpful way of memorizing the electromagnetic spectrum:
"Remind Me If Visible Underwear eXcites Grandma" - Radio waves, Microwaves, Infrared, Visible, Ultraviolet, X-rays, Gamma rays
Hopefully, you find this as helpful as I did!

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