Two identical silver spheres of mass m and radius r are placed a distance R (sphere 1) and 3R (sphere 2) from the sun respectively. The ratio of the intensity of solar radiation on sphere 2 to that on sphere 1 is.

a. 9.0
b. 1.0
c. 0.33
d. 3.0
e. 0.11

e.0.11

Explanation:

We are given that

We have to find the ratio of the intensity of solar radiation on sphere 2 to that on sphere 1.

Intensity is inversely proportional to square of distance from sun.

Using the formula

Option e is true.

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