Question

Planet X is closer to Sun than planet Y. It can be inferred that ______________.

• A. Planet X has longer revolution period than planet Y
• B. Planet Y has longer revolution period than planet X
• C. Planet X has longer rotation period than planet Y
• D. Planet Y has longer rotation period than planet X

Answer 1

The correct option is B Planet Y has longer revolution period than planet X

Farther a planet is from the Sun, larger is its orbit because circles of larger radii have larger periphery. So, it will take more time to complete a revolution i.e., to cover the entire length of its orbit. Planet X is closer to Sun, thus, its orbit will be smaller. So, it will take lesser time to complete a revolution.Orbital size has no impact on rotation.