JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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If the radius of a star is R and it acts as a black body, what would be the temperature of the star, in which the rate of energy production is Q (σ stands for stefan’s constant)

View answer and explanation

Correct option: D

{\left( {Q/4\pi {R^2}\sigma } \right)^{1/4}}

Option D (

{\left( {Q/4\pi {R^2}\sigma } \right)^{1/4}}

) is correct because it is derived from the Stefan-Boltzmann law relating energy production rate to temperature and surface area.

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