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Question
Draw a ray diagram to show the refraction of a monochromatic ray through a prism when it suffers minimum deviation
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Solution
Refraction of a monochromatic ray through a prism when it goes through minimum deviation:

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State the dependence of angle of deviation On the refractive index of the material of the prism.
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(c) smaller than the angle of incidence
(d) 45°
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A student traces the path of a ray of white light through a rectangular glass slab and marks, the angles of incidence (∠i) , refraction (∠r) and emergence (∠e) as shown. Which angle or angles has he not marked correctly?

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With reference to the fig, the refractive index of the glass block is

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In the diagram below, PQ is a ray of light incident on a rectangular glass block.

Copy the diagram and complete the path of the ray of light through the glass block. In your diagram, mark the angle of incidence by letter ‘i’ and the angle of emergence by the letter ‘e’.
