Question

Explain the function of a prism in dispersion of light.​

Answer 1

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What is the function of a despersive prism ?

Dispersive prisms are used to break up light into its constituent spectral colors because the refractive index depends on frequency.

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What happens when light is dispersed by a prism?

Visible light, also known as white light, consists of a collection of component colors.Upon passage through the prism, the white light is separated into its component colors - red, orange, yellow, green, blue and violet. The separation of visible light into its different colors is known as dispersion.

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What is a common example of dispersion?

Rainbow forms when sunlight hits the water droplets suspended in the atmosphere and undergoes total internal reflection. This dispersion or breaking up of light into several colors is what forms the rainbow. Hence, rainbow is an example of dispersion of sunlight.

Answer 2

SOLUTION:-

An optical prism is a transparent optical element with flat, polished surfaces that refract light. At least one surface must be angled—elements with two parallel surfaces are not prisms. The traditional geometrical shape of an optical prism is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type. Some types of optical prism are not in fact in the shape of geometric prisms. Prisms can be made from any material that is transparent to the wavelengths for which they are designed. Typical materials include glass, plastic, and fluorite.