Question

As observed from earth, the sun appears to move in an approximate circular orbit. For the motion of another planet like mercury as observed from earth, this would

• A. be similarly true.
• B. not be true because the force between earth and mercury is not inverse square law.
• C. not be true because mercury is influenced by forces other than gravitational forces.
• D. not be true because the major gravitational force on mercury is due to sun.

Answer 1

The correct option is D

not be true because the major gravitational force on mercury is due to sun.

As we know that in the universe gravitational force acts between any two bodies. All planets move around the sun due to huge gravitational force of the sun acting on them. The gravitational force on mercury due to earth is much smaller as compared to that acting on it due to sun and hence it revolves around the sun and not around the earth.

Final Answer: (c)