AIPMT PRELIMS2002Physics-Thermodynamics
AIPMT PRELIMS 2002 Physics Black Body Radiation MCQ Question
Type: MCQ-numerical-Hard-Class 11
For a black body at temperature 727°C, its radiating power is 60 watt and temperature of surrounding is 227°C. If temperature of black body is changed to 1227°C then its radiating power will be :-
A
304 W
B
320 W
C
240 W
D
120 W
Correct Answer
Option B
Detailed Explanation
Using Stefan-Boltzmann law, the power radiated is proportional to the fourth power of the temperature difference.
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