While performing an experiment to trace the path of a ray of light passing through a glass prism, four students marked the incident ray and the emergent ray in their diagrams in the manner shown below. Which one is correct?(a) I(b) II(c) III(d) IV"

(c) III

Explanation

 When the light travels from a rarer medium (here air) to a denser medium (here prism) it bends towards the normal. While, when the light travels from a denser medium (here prism) to a rarer medium (here air) it bends away from the normal.

This condition is only followed in option 'c'.

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Updated on: 10-Oct-2022

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