Compare two blackbody objects, one at 200 K and one at 400 K.How much larger is the flux from the 400 K object compared to the flux from the 200 K object?
A) 2 times larger
B) 4 times larger
C) 8 times larger
D) 16 times larger
E) They have the same flux.

Question

Quizplus · Accepted Answer

The flux from a blackbody is proportional to the fourth power of its temperature (Stefan-Boltzmann Law). Therefore, (400/200)^4 = 2^4 = 16 times larger.

Compare Two Blackbody Objects, One at 200 K and One