CSIR UGC NET physics june 2019 solution Queation goes like this: The Infinite square well potential of a particle in a box of size a is modified as shown in the figure below. The energy of the ground state compared to the ground state energy before the perturbation was added A Quantum particle of mass M in One dimension confined to a rigid box as shown in the figure is in its ground state. And infinite its month in wall is very well slowly raised to infinity at the centre of the box in such a way that the system remains in its ground state at all times as you mean that no energy is lost in raising the wall the work done on the system when the wall is fully taste eventually separating the original box into two Compartment