(a) What is a polarizer?
(b) With the aid of a diagram, explain how a polarizer can be used to polarize a beam of unpolarized light.
Explanation
Polarizer is an optical device which allows vibrations of light to pass throagh in only one phone perpendicular to the direalioniof propagation
(b)
Unpolarized Polarizer Polarized l light ight Unpolarized light vibrates in all directions and a polarized is used to block all vibrations, and transmits only light vibrations polarized in one plane perpendicular to the direction of propagation.