Transmission Of Heat Question 346

Question: An electric heater, assumed to be a black body has a temperature of $ 727{}^\circ C $ . If its temperature is raised to $ 1727{}^\circ C, $ the amount of energy radiated per unit time now as compared with that in the first case will be

Options:

A) twice

B) 4 times

C) 16 times

D) 100 times

Show Answer

Answer:

Correct Answer: C

Solution:

[c] $ E\propto T^{4} $