01-09-2018
Physics

contestada

A small black spot is present on the metal plate and if the metal plate is heated to red hot and quickly placed in a dark room then the spot will appear white while the plate appears black. The spot is white because its a perfect black body and is heated, but why does the plate appear black? Why not red?

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osprey2015 osprey2015

02-09-2018

this has something to do with black body radiation and absorption

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