Mark the correct statement/s-:

Options

A. Gravitational potential at curvature centre of a thin hemispherical shell of radius R and mass M is equal to `(GM)/(R)`
B. Gravitational field strength at point lying on the axis of a thin, uniform circular ring of radius R and mass M is equal to `(GMx)/((R^(2)+x^(2))^(3//2))` where x is distance of that point from centre of the ring.
C. Newton's law of gravitation for gravitational force between two bodies is applicable only when bodies have spherically symmetric distribution of mass
D. None of these

Answer

B, C

Explanation

Gravitational potential `V=(GM)/(R)` ltbr. (B) gravitational field at the point x fro the centre of the coil
`(GMx)/((R^(2)+x^(2))^(3//2))`