Which of the following objects is not a close approximation of a thermal emitter?
A)hot,thin gas
B)a star
C)a filament in a light bulb
D)you
E)a planet

Question

Quizplus · Accepted Answer

A hot, thin gas does not closely approximate a thermal emitter because it emits light at specific wavelengths rather than a broad spectrum of radiation, unlike the other examples which emit a continuous spectrum of radiation more akin to a blackbody radiator.

Which of the Following Objects Is Not a Close Approximation