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Electromagnetic Spectrum

Posted: Thu Oct 10, 2019 8:53 pm
by Ellis Song 4I
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?

Re: Electromagnetic Spectrum

Posted: Thu Oct 10, 2019 9:14 pm
by Doreen Liu 4D
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.

Re: Electromagnetic Spectrum

Posted: Thu Oct 10, 2019 9:16 pm
by JOtomo1F
I hope we would be allowed to refer to a chart but I am not sure at all.

Re: Electromagnetic Spectrum

Posted: Thu Oct 10, 2019 10:00 pm
by Sanjana K - 2F
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

Re: Electromagnetic Spectrum

Posted: Fri Oct 11, 2019 12:15 pm
by Verity Lai 2K
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).

Re: Electromagnetic Spectrum

Posted: Fri Oct 11, 2019 12:47 pm
by ValerieChavarin 4F
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.