JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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Understanding +4 | -1

A spherical body of emissivity

e=0.7

and surface area

A

is Placed inside a perfect black body maintained at temperature

T

, then energy radiated per second by black body will be

View answer and explanation

Correct option: D

E=\sigma \,{AT}^4

Option D (

E=\sigma {AT}^4

) is correct because a perfect black body emits radiation according to the Stefan-Boltzmann law, regardless of the emissivity of the object inside.

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