27 February 2017

What is polorization

Light is electromagnetic in nature. The light is transverse in nature. 

The vibration of the electric field and magnetic field are perpendicular to each other and they are also perpendicular to the direction of propagation of light.

The light in which electric field has the freedom to vibrate in all direction which is perpendicular to the propagation of light is known as unpolarised light.

Unpolorised means it has the freedom and it does not have any restrictions.

The light in which the electric field can vibrate only in one direction in another word there is restriction of vibration of an electric field such light is known as polarised light.
The phenomenon in which unpolarised light is converted into polarized light is known as polarization.

There are different method unpolarised light converted into polarised light :

  • Using polarising materials.
  • By reflection of light.
  • By scattering of light. 
  • By doable refraction of light.