Refraction of Light

• Refraction: Bending or change in the direction of light as it passes from one medium to another
• Refraction of light occurs because of change in the speed of light due to a change in the medium. 
• When light enters an optically denser medium from an optically rarer medium, the speed of light slows down and light bends towards the normal. 
• The opposite happens when light enters an optically rarer medium from an optically denser medium.

• Effect on various characteristics of light on reflection and refraction:

  Characteristics

  Partially r…