What are polariser and analyser?

When the polariser and analyser are in the crossed position the intensity of the out coming light is

In a two tourmalines experiment, the polariser and analyser are crossed with each other. At what angle should the analyser be rotated so that 25% of light passes through analyser ?

Unpolarised light of intensity 32 W//m^(2) passes through a polariser and analyser which are at an angle of 30^(@) with respect to each other. The intensity of the light coming from analyser is

Unpolarised light passes through a polariser and analyser which are at an angle of 45^(@) with respect to each other. The intensity of polarised light coming fromanalyse is 5W//m^(2) . The intensity of unpolarised light incident on polariset is

The polariser and analyser are inclined to each other at 60^@ . The intensity of the polarised light emerging from the polariser is I . What is the intensity of the unpolarised light incident on the polariser ?

The axes of the polariser and analyser are inclined to each other at 60^(@) . If the amplitude of polarised light emergent through analyser is A. The amplitude of unplorised light incident polariser is

The axes of the polariser and analyser are inclined to each other at 60^(@) . If the amplitude of the polarised light emergent through analyser is A. The amplitude of unpolarised light incident on polariser is

The polariser and analyser are inclined to each other at 60^(@) . If I/2 is the intensity of the polarised light emergent from analyser. Then the intensity of the unpolarised light incident on the polariser is