Solved UPSC CDS/OTA Question
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Q · Heat and ThermodynamicsMedium · 45s
Which law relates the total energy radiated to the fourth power of temperature?
TopicHeat and Thermodynamics
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Stefan-Boltzmann: E = σT⁴.
Final Answer: Option B — Stefan-Boltzmann Law