31. An optically plane surface reflects a beam of light A.As a parallel beam in one direction B.As diffused beams in all directions C.As parallel beams in all directions D.As a diffused beam in one direction
Option A Solution: An optically plane surface reflects a beam of light as a parallel beam in one direction. The set of incident rays are reflected as a set of rays. This type of reflection of a set of rays is called Specular Reflection.
