Question

Assertion (A): For a system of masses at some finite distance, gravitational field can be zero but gravitational potential can not be zero. Reason (R): Gravitational field is a scalar quantity while gravitational potential is a vector quantity.

Assertion (A): Assuming zero potential at infinity, the gravitational potential at a point can never be positive. Reason (R): The magnitude of gravitational force between two particles has inverse square dependence on the distance between two particles.