Question

It is the first face of a prism which disperses white light. The statement is?
A) True
B) False

Answer 1

Hint: The splitting of white light into its constituent colors is called dispersion of light. White light consists of 7 colors and upon passing through the prism it gets split into its constituent components.

Complete step by step answer:
A prism is made from refracting medium bounded by two plane faces. These plane faces are inclined to each other at some angle. This angle is known as the angle of the prism. How much the light ray gets deviated depends upon the angle of deviation. The angle of deviation is between the incident ray entering from the first face and refracted ray from the second face.
Hence, the second face is responsible and the given statement is false.

Therefore, the correct option is (B)

Additional information:
If a light ray is incident perpendicularly on any refracting surface then, the ray passes undeviated in a straight line. Light or visible light is an electromagnetic radiation. An electromagnetic radiation is produced by an accelerated charged particle or by a charged particle which is in vibration and electromagnetic rays have their unique properties which makes them stand out of all the radiations that exist in nature.

Note:The condition in which a ray of light suffers minimum deviation, the angle of incidence comes out to be equal to the angle of emergence. And in such a case the ray of light passes parallel to the base of the prism.