1.To see why the amount of light produced by a black object must
only depend on it’s temperature consider the following situation.
Suppose you have two black square plates, each at the same
temperature, that are placed face to face with a small gap between
them. They are both perfectly black and so absorb all
electromagnetic radiation incident upon them but suppose one of the
plates is emitting twice the radiation of the other. Explain why
this would violate the...