Write some terms related to prism.

Some terms related to prism are:

  1. Angle of deviation (∠ẟ): The difference in the initial and final direction of propagation of light rays is known as the angle of deviation. 
  2. Angle of incidence (∠i): The angle which an incident ray makes with a perpendicular to the surface at the point of incidence.
  3. Angle of emergence (∠e): The angle of emergence is the angle of the light ray coming out of a medium with the perpendicular to the surface at the point of emergence.
  4. Prism angle (∠A): The angle between two surfaces of a prism is known as prism angle.
  5. Refracted angle (∠r): The angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occurs.

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