NEETPhysics-Thermodynamics
NEET Physics Radiation MCQ Question
Type: MCQ-numerical-Medium-Class 11
A metal rod at a temperature of 150°C, radiates energy at a rate of 20 W. If its temperature is increased to 300°C, then it will radiate at the rate of
A
40.8 W
B
320 W
C
67.3 W
D
160 W
Correct Answer
Option C
Detailed Explanation
Using Stefan-Boltzmann law, the radiated power is proportional to the fourth power of temperature in Kelvin.
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