The bending of light as it passes into a transparent material of different optical intensity is known as refraction. The correct option among all the options given in the question is option "C".It can never be
reflection as reflection is the bouncing of the light from a surface and so
option “A” can easily be negated. The last option or option
“D” conversion and it mean converting something to
another and that means a total change of form. So the last option should also
be negated. The second option can also be negated.
