Question

1- introduction about polarization

2- four methods to make polarized light

Answer 1

1.Polarization:-As we know light is electromagnetic wave which is of transverse nature.In case of transverse wave electric and magnetic field vectors oscillates perpendicular to the direction of propagation of wave.And electric fields are randomly directed in all direction,and light is said to be un-polarized.when electric field vectors are oscillating in only one direction,the light is said to be polarized.The plane in which the electric field vectors are oscillating is known as plane of oscillation.The phenomenon is called polarization.

2.Methods to make polarized Light:- There are different methods to make polarized light.

1.By using artificial polarizer.

2.By Reflection.

3.By Refraction.

4.By Scattering.