20. Heat and Temperature
Heat Transfer
Multiple Choice
Multiple ChoiceIf the intensity of sunlight measured at the Earth's surface is 1400 W/m2 , what is the surface temperature of the Sun? Treat the Sun like a true blackbody. Note that the distance from the Earth to the Sun is 1.5 x 1011 m and the radius of the Sun is 696 million meters.
A
3686 K
B
5819 K
C
5777 K
D
6.5 × 107 K
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