Question

A radiating body has a Kelvin temperature T0, and its surroundings are at When the Kelvin temperature of the radiating body increases to 2T0, the net rate of its radiation increases by a factor of 39. What is T0? 540 K 523 K 512 K 567 K

Answer 1

Use the Stefan-Boltzman law:

P = sT^4 s = Stefan-Boltzman constant