Question

what is angal of deviation?​

Answer 1

Answer:

The emergent ray is bent at an angle with the direction of the incident ray. This angle is called the angle of deviation. The phenomenon of splitting of white light into its constituent seven colors on passing through a glass prism is called dispersion of light.

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Answer 2

Explanation:

the angle equal to the difference between the angle of incidence and the angle of refraction of a ray of light passing through the surface between one medium and another of different refractive index.