Light%20and%20Matter-1

Light%20and%20Matter-1 - Light Interacting with Matter...

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Light Interacting with Matter (Supplement to Reading Assignment #5) Absorption, Transmission, and Reflection If (visible) light encounters a transparent material like a piece of clear plastic or glass, generally three things happen: Some of the light’s energy is reflected, some is transmitted, and some of the energy is absorbed (and converted to thermal energy). The sum of these three parts must add up to the incoming energy since energy is conserved. Incoming Light Transmitted Light Reflected Light In the case of window glass, most of the light’s energy is transmitted and only small portions are reflected and absorbed. You can easily observe this in car or shopping windows. The image you see is composed of reflected light and transmitted light (from the inside of the car). (The portions of reflected and transmitted light are angle- dependent). The transmission of light through clear glass is very similar for all colors of the visible light range but in colored (or stained) glass,
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This note was uploaded on 05/19/2011 for the course PHYS PHYS 100 taught by Professor Lioudmila during the Winter '10 term at UBC.

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Light%20and%20Matter-1 - Light Interacting with Matter...

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