Refraction of light is the change in direction of light when light passes from one medium to another obliquely.

This Refraction leads to some interesting phenomena, like


Pencil partly immersed in water appears to be bent

Refraction - Example 1 - Pencil in water.jpg


When a glass is placed over piece of paper, writing appears higher



Stars appear to twinkle at night

twinkling of stars.gif

Optical Illusion like Mirage is due refraction of light

Like the road appears wet during hot days

Mirage Example.jpg

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.