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What is the cause of refraction of light?

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Questions

What is the cause of refraction of light?

Write the basic cause of refraction of light.

Very Short Answer
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Solution

When a ray of light passes from one medium to another, its direction (except for normal incidence) changes because of a change in the speed of light. Thus, refraction occurs because light travels with different speeds in different media.
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Chapter 2: Light - Exercise 2.1 i [Page 88]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 2 Light
Exercise 2.1 i | Q 4 | Page 88

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