## Electromagnetic Spectrum

$c=\lambda v$

Ellis Song 4I
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

### Electromagnetic Spectrum

Do we need to memorize the range of wavelengths that each type of radiation have and what order they go in the electromagnetic spectrum. In question 1A 9 in the homework, we are asked to fill out the chart and then determine the type of radiation and events for each line. Are we allowed to refer to a spectrum for this or is this something we should know?

Doreen Liu 4D
Posts: 54
Joined: Wed Sep 11, 2019 12:17 am

### Re: Electromagnetic Spectrum

I believe the spectrum is something you should know. Just remember that the more dangerous waves like Gamma rays and x-rays are on the high frequency, low wavelength end of the spectrum, while waves like microwaves and radio waves are on the low frequency, high wavelength end of the spectrum.

JOtomo1F
Posts: 66
Joined: Sat Aug 24, 2019 12:16 am

### Re: Electromagnetic Spectrum

I hope we would be allowed to refer to a chart but I am not sure at all.

Sanjana K - 2F
Posts: 102
Joined: Sat Sep 07, 2019 12:17 am
Been upvoted: 1 time

### Re: Electromagnetic Spectrum

I don't think you'll need to memorize the exact wavelengths, but you should have a good idea of where the different waves lie in relation to one another. It might also help to come up with examples for each. The "types of EM Radiation" picture in this site is pretty nice.

https://www.britannica.com/science/elec ... c-spectrum
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Verity Lai 2K
Posts: 100
Joined: Sat Aug 24, 2019 12:18 am

### Re: Electromagnetic Spectrum

I think we need to know the general placement of UV, Xray, visible, micro, infrared, etc, on the spectrum, like if they have shorter or longer wavelengths. I think we also have to know the range of wavelengths for visible light (400 to 700 nm).

ValerieChavarin 4F
Posts: 99
Joined: Wed Sep 18, 2019 12:18 am

### Re: Electromagnetic Spectrum

I don't believe we have to memorize the exact ranges, but possibly their placement based on wavelength. I do think you should know the range of visible light because it is common.