The Radius of the Sun Is 6

Multiple Choice

The radius of the Sun is 6.95 × 10⁸ m. It radiates heat at the rate of 5.32 x 10²⁶ W. Assuming that it is a perfect emitter, what is the temperature of the surface of the Sun? The Stefan-Boltzmann constant is 5.67 x 10^-8 W/(m²·K⁴) .

A) 6.27 × 10³ K
B) 8.25 × 10³ K
C) 8.87 × 10³ K
D) 3.93 × 10⁷ K
E) 5.78 × 10⁷ K