Question

The semi-major axis of the orbit of Saturn is approximately nine times that of Earth. The time period of revolution of Saturn is approximately equal to

• A. 81 years
• B. 27 years
• C. 729 years
• D. $\sqrt[3]{81}$ years
• E. 9 years

Hint:

To simplify calculations like $\sqrt{n^3}$, you can compute it as $(\sqrt{n})^3$. In this case, $\sqrt{9^3} = (\sqrt{9})^3 = 3^3 = 27$. This avoids dealing with large intermediate numbers like 729.

Answer 1

The Correct Option is B