A spherical satellite of radius radiates a luminosity at a surface temperature

PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

A spherical satellite of radius R0R_0 radiates a luminosity L0L_0 at a surface temperature T0T_0. Engineers wish to raise the surface temperature to 2T02T_0 while keeping the luminosity unchanged. By what numerical factor must the satellite’s radius be multiplied? Express your answer in terms of R0R_0.

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