Question

Which of the following is the evidence to show that there must be a force acting on the earth and directed towards the sun?

A. deviation of falling bodies towards the east

B. revolution of the earth around the sun

C. phenomenon of day and night

D. apparent motion of sun around the earth

Answer 1

The revolution of earth around the sun shows that there must be a force acting on the earth and directed towards the sun.

Since revolution requires a centripetal force and this centripetal force has provided the gravitational force between the earth and sun.

Hence, option B is correct.