Question

Two spacecraft are both 10 million kilometers from a star. The total power output of the star is 4 x 10²⁵ W. Spacecraft 1 has a solar panel with a radius of 18 m. Spacecraft 2 has a solar panel with a radius of 6 m. What is the ratio of the power collected by the solar panel of Spacecraft 1 to the power collected by the solar panel of Spacecraft 2.

a. 1

b. 3

c. 18

d. 0.11

e. 9

f. 0.06

g. 0.33

Answer 1

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