Question

Suppose the sun was twice its current temperature. Recall, the sun is 7 x 10⁵ km in radius, with a surface temperature of 5800 K., and our distance from the sun is D = 150 million km. Using the equation to model the temperature of the earth,  (R2sun4D2)1/4Tsun and remembering you have to work in the absolute temperature scale (0K = -273°C), what would happen to the temperature of the earth (in Kelvin scale)?

Select one:

a. It would twice as hot.

b. It would be a quarter times as hot.

c. It would be four times as hot.

d. It would be half as hot.

Answer 1