Black body X has a surface area of and an absolute temperature of

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

Black body X has a surface area of

A

and an absolute temperature of

T

. Black body Y has a surface area of

2A

and a temperature of

\frac{T}{2}

. Which of the following is the best estimate for the ratio of the emitted power of X to Y,

\frac{P_X}{P_Y}

? (1) 16 (2) 8 (3) 4 (4) 1