Telling color by wavelength


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Searra Harding 4I
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

Telling color by wavelength

Postby Searra Harding 4I » Wed Oct 10, 2018 10:41 pm

Is there a way to know exactly what color light is based on its wavelength? I know that visible light falls between 700nm (red) and 400nm (violet). If something was 515nm, is there a way to define what color that is? Has each color been given a set length of nanometers that defines it? How did people decide if something was a certain color or not? Just out of curiosity.

Nada AbouHaiba 1I
Posts: 77
Joined: Fri Sep 28, 2018 12:28 am
Been upvoted: 1 time

Re: Telling color by wavelength

Postby Nada AbouHaiba 1I » Wed Oct 10, 2018 10:47 pm

Yes, you can! Depending on the color it usually has a range of wavelength it falls under - I'll attach a photo I found online that shows the different colors and their corresponding wavelengths

I hope this helps!
Attachments
LIS_SCI_ART_02_Colours_of_light_visible_spectrum_waves_v02.jpg

Celine Hoh 2L
Posts: 66
Joined: Fri Sep 28, 2018 12:28 am

Re: Telling color by wavelength

Postby Celine Hoh 2L » Wed Oct 10, 2018 11:11 pm

Thanks so much for the chart!

Linh Vo 2J
Posts: 61
Joined: Sat Apr 28, 2018 3:00 am

Re: Telling color by wavelength

Postby Linh Vo 2J » Wed Oct 10, 2018 11:36 pm

Yes, there are ways to tell what color is presented by memorizing different wavelength ranges or using a chart. However, I feel that he does not expect us to be able to eyeball a wavelength and be able to determine its color.


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