The radius of the Sun is 6.95 × 108 m. It radiates heat at the rate of 5.42 × 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 × 10-8 W/(m2?K4)

A)

6.30 × 103 K

B)

8.25 × 103 K

C)

8.87 × 103 K

D)

3.93 × 107 K

E)

5.78 × 107 K


A

Physics & Space Science

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