| 1. | \(-\dfrac{8}{3}{G}\) | 2. | \(-\dfrac{4}{3} {G}\) |
| 3. | \(-4 {G}\) | 4. | \(-{G}\) |
A particle of mass \(M\) is situated at the centre of a spherical shell of the same mass and radius \(a.\) The gravitational potential at a point situated at \(a/2\) distance from the centre, will be:
1. \(-\dfrac{3GM}{a}\)
2. \(-\dfrac{2GM}{a}\)
3. \(-\dfrac{GM}{a}\)
4. \(-\dfrac{4GM}{a}\)