The force acting on a particle of mass m moving along the X-axis is given by F(x) = Ax² $$-$$ Bx. Which one of the following is the potential energy of the particle?

The symbol of SI unit of inductance is H. It stands for

In a vacuum, a five-rupee coin, a feather of sparrow bird and a mango are dropped simultaneously from the same height. The time taken by them to reach the bottom is t₁, t₂ and t₃, respectively. In this situation, we will observe that

Electron emission from a metallic surface by application of light is known as