Question

How does the angel of deviation formed by a prism change with the increase in the angle of incidence?

Draw a graph showing the variation in the angle of deviation with the angle of incidence at a prism surface.​

Answer 1

Answer:

The deviation angle in a prism depends upon: Refractive index of the prism: The refractive index depends on the material and the wavelength of the light. The larger the refractive index, the larger the deviation angle. ... The deviation angle first increases with increasing incidence angle, and then decreases.

Answer 2

Heya!!

Here's your answer!!

Experimentally it has been observed that as the angle of incidence increases, the angle of deviation first decrease, reaches to a minimum value for a certain angle of incidence and then an further increasing the angle of incidence, the angle of deviation begins to increase.

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