The given plot shows the variation of U, the potential energy of interaction between two particles with the distance separating them r,

Electric potential energy V between two charges varies with distance (r) between them as

Figure given below shows the variation of potential energy function U(x), corresponding to a particle lying in a one dimensional force field. The force acting on the particle at x = 2 m is:

Draw a plot showin the variation of electric potential V with distance r due to a point charge q.

The gravitational force between two particles separated by a distance r varies as ……………