When an unpolarised light is polarized, then the intensity of light of the polarized waves

Define unpolarized light and polarized light.

When unpolarized light is passed through a polarizer , its intensity

When its unpolarized light is passed through a polarizer, its intensity

The degree of polarization of partially polarized light is P = 0.25 . Find the ratio of intensities of the polarized component of this light and the natural component.

If a polaroid is kept in the path of a uniformly unpolarised light ,the intensity of the transmitted light to the intensity of the light ,when the polaroid is not kept in its path,is

When an unpolarised light of inensity I_0 is incident on a polarizing sheet, the intensity of the light which does not get transmittted is

A plane polarized light passed through successive polarizers which are rotated by 30^(@) with respect to each other in the clockwise direction. Neglecting absorption by the polarizers and given that the first polarizer's axis is parallel to the plane of polarization of the incident light, the intensity of light at the exit of the fifth polarizer is closest to