Question

A monochromatic point source of light S is viewed by an observer O through a prism P. Complete the diagram to show the image formed by the prism and as seen by the observer O. Label the image by the letter I.

Answer 1

The prism is a glass device which is used to show the refraction of light. The prism has a triangular surface.

Explanation:

• The angle with the normal that the incident ray makes is known as the angle of incidence and the the angle which the emergent ray makes with the normal is called the angle of emergence.

• The angle of deviation that takes place between the emergent Ray and the extension of the incident ray is known as the the angle of deviation. the deviation depends on the refractive index of the glass.

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