Two conductors made of the same material are connected across the same potential

The correct answer to the question is diverge i.e the parallel rays will be diverged ,

EXPLANATION:

A concave lens is a optically transparent spherically lens whose middle portion is thinner, curved inwards, and bulged towards the edge.

The concave lens is a diverging lens. For an ideal concave lens free from aberration, both paraxial rays and marginal rays are diverged after being refracted by the lens.

Unlike convex lens, the parallel rays won't converge on the principal axis. The refracted rays will appeared to be coming from a point on the principal axis.

Hence, the correct answer to the question is that the parallel light rays will be diverged when they are allowed to pass through the concave lens.