What is an unpolarized light ? Explian with the help of suitable ray diagram how an unpolarized light can be polarized by reflection from a transparent medium. Write expression for Brewster's angle.

A beam of unpolarized light is incident on a glass air interface. Show, using a suitable ray diagram that light reflected from the interface is totally polarized by reflection from a transparent medium. Write expression for Brewster's angle.

(a) How does an unpolarized light incident on polaroid get polarized ? Describe briefly, with the help of necessary diagram, the polarization of light by reflection from a transparent medium. (b) Two polaroids 'A' and 'B' are kept in crossed position. How should a third polaroid 'C' be placed between them so that the inlensity of polarized light transmitted by polaroid B reduces to 1//8^(th) of the intensity of unpolarized incident on A?

Does the polarizing angle e, for a transparent medium depend upon the wavelength of light?

If the light is polarised by reflection, then the angle between reflected the ray passes from medium to air ?

State using a neat diagram, what happens to the path of light when light ray passes from denser to rarer medium.

State using a neat diagram, what happens to the path of light when light ray passes from rarer to denser medium.