When a wave or light ray moves from one medium to another its speed changes. The direction of the ray may also change. This property of waves is called refraction and commonly occurs with light rays.

This video looks at the refraction of light and demonstrates how refraction can make the handle of a Pyrex jug seemingly disappear.

Get: NCERT Class 10 Lab Manuals PDF Below are some examples of competency-based questions from Chapter 9, focusing on Light – ...