Two rings having masses M and 2M, respectively, having the same radius are placed coaxially as shown in the figure. If the mass distribution on both the rings is non-uniform, then the gravitational potential at point P is
Why this question? Note: Even though the ring has non-uniform mass distribution, the potential expression remains the same. This is because potential is a scalar quantity and all points on the ring are equidistant from the point on the axis. Key Concept: The gravitational potential due to a ring on its axis is given by V=−GM√R2+x2 |