Gravitational Potential — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Gravitational Potential.

Combined potential and field intensity problems

high

NEET often tests the interrelationship between different concepts. Questions might ask to find the point where field intensity is zero, and then calculate the potential at that point, or vice-versa. Understanding $E = -dV/dr$ and its implications for graphs of $V$ vs $r$ and $E$ vs $r$ is crucial. For instance, a question might present a $V-r$ graph and ask about the corresponding $E-r$ graph or the force experienced by a mass at a certain point. This tests both conceptual and analytical skills.

Potential due to a system of multiple point masses (superposition)

medium

While not as frequent as single-body problems, questions involving the potential due to 2-3 point masses arranged in simple geometries (e.g., corners of a square or equilateral triangle) are possible. Since potential is a scalar, these problems are simpler than calculating field intensity (which requires vector addition) but still test the ability to apply the basic formula and sum algebraically. Students often make sign errors or calculation mistakes in such problems, making them good discriminators.

Work done in re-arranging masses or moving a mass in a non-uniform field

medium

Questions asking for the work done to assemble a system of masses from infinity, or to move a mass between two points in the field of another body, are common. These directly test the understanding of potential energy and its relation to potential. A slightly more advanced version could involve moving a mass within a solid sphere, where the potential formula changes with depth. This requires careful application of $W = \Delta U = m(V_f - V_i)$ and the correct potential formulas for different regions.