6. (a) A ray of light XY passes through a right angled isosceles prism as shown below. [3]
(i)
What is the angle through which the incident ray deviates and emerges out of
the prism?
Name the instrument where this action of prism is put into use.
Which prism surface will behave as a mirror ?
(ii)
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Explanation:
A right-angled prism of apex angle 4∘ and refractive index 1.5 is located in front of a vertical plane mirror as shown in figure. A horizontal ray of light is falling on the prism. Find the total deviation produced in the light ray as it emerges 2nd time from the prism.
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