P1- 1.2

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P1- 1.2- SURFACES AND RADIATION

- Dark, matt surfaces are better at emitting radiation than light, shiny surfaces

-When you use a photocopier, infrared radiation from a lamp dries the ink on the paper. Otherwise the copies would be smudged. Black ink absorbs more infrared radiation than white paper.

-The radiation reflected from the matt surface hits the surface again

-The radiation reflected from the shiny surface travels away from the surface

IN GENERAL:

-Light shiny surfaces absorb less radiation than dark matt surfaces

-Light shiny surfaces reflect more radiation than dark matt surfaces