Talk:Absorption (electromagnetic radiation)

From Wikipedia, the free encyclopedia

WikiProject Physics This article is within the scope of WikiProject Physics, which collaborates on articles related to physics.
Stub This article has been rated as Stub-Class on the assessment scale.
High This article is on a subject of High importance within physics.

Help with this template This article has been rated but has no comments. If appropriate, please review the article and leave comments here to identify the strengths and weaknesses of the article and what work it will need.

I want an example for change from colorless to colored by using UV spectroscopy.

Spectroscopy doesn't change the colour of a compound, it measures it. UV spectroscopy measures UV light absorbed by an compound. If a compound does not absorb any light in the visible spectrum, the compound therefore appears colourless, even though it may absorb light in other areas of the electromagnetic spectrum, for example ultraviolet, infrared, x-rays, gamma rays etc. Silver 10:14, 8 March 2007 (UTC)

Absorption is when light absorbs something.

Firstly, I hope you don’t mind I corrected your spelling and actually, absorption in a physics context means when something absorbs light. Light, in reference to all electromagnetic radiation, not just visible light, is just packets of energy called photons, to which electrons then absorb. The photon does not absorb the electron. Silver 10:14, 8 March 2007 (UTC)

Absorption is when light absorbs something. Thats hilarious. anyways, i was wondering if someone could give me a really good and thoughrough explanation of how the energy of the excited electron transforms to heat energy. I dont mean re-emitted as electro-magnetic radiation, i mean heat. thats kinetic, how does that happen? its part of my personal investigation into colour. —Preceding unsigned comment added by 220.245.156.15 (talk) 11:32, 20 December 2007 (UTC)