AIIMS2000Physics-Heat Radiation
AIIMS 2000 Physics Stefan-Boltzmann Law MCQ Question
Type: MCQ-numerical-Medium-Class 11
Surface temperature of star A and B are 727°C and 327°C respectively. What is the ratio Hₐ : Hᵦ for the heat radiated per second by the two stars?
A
5 : 3
B
25 : 9
C
625 : 81
D
125 : 27
Correct Answer
Option C
Detailed Explanation
The heat radiated by a star is proportional to the fourth power of its temperature (Stefan-Boltzmann law). Converting temperatures to Kelvin and applying the law gives the ratio.
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