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Physics 10 Online
OpenStudy (lgbasallote):

which is a hotter color? light colors or black colors? im thinking white because it is the presence of all colors?

OpenStudy (anonymous):

what do you mean black/white color? do you mean white as white light (all visible colors) and dark as absence of any color and therefore black (none of visible colors)?

OpenStudy (lgbasallote):

yup colors

OpenStudy (anonymous):

Well since black colors absorbs light, therefore it is regarded as a hotter color compared to white colors which reflects light.

OpenStudy (lgbasallote):

ohhh..i always get them mixed up

OpenStudy (lgbasallote):

so when they say "white is a presence of all colors" it's actually absence because white reflects it?

OpenStudy (anonymous):

well if you look at spectrum of colors you probably know that blue has more energy than red color but red color is hotter since it is closer to infra red spectrum and infra red spectrum we look as point of heating energy, but yes @Sancy is rignt black is hotter than white cause it apsorbs all frequencies and therefore their energy. white is actually presence of all colors because it contains all colors in its spectrum

OpenStudy (lgbasallote):

but it reflects it...that seems weird lol

OpenStudy (lgbasallote):

oh wait..white light contains all colors...but white color reflects the colors?

OpenStudy (anonymous):

white light comes to surface which we percieve as white and that surface has probably bih refractive index and reflects all color frequencies and therefore we percieve it as white, but that doesnt mean that it doesnt apsorb some other (invisible to our eye) spectru, frequencies.

OpenStudy (lgbasallote):

oh okay thanks!

OpenStudy (anonymous):

not a problem

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