Unpolarised light of intensity `32 W m^(-2)` passes trough three polarisers,such that transmission axis of last polariser is crossed with the first.If intensity of ermerging light is `3W m^(_2)`,what is the angle between the transmission axis of the first two,polarisers?At what angle will the inensity of transmitted light be maximum?

If the angle between the planes of the polariser and analyser is 60^@ , by what factor does the intensity of the transmitted light change when passing through the analyser.

The refractive index of a material is sqrt3 . What is the angle of refraction if the unpolarised light is incident on it at the polarising angle of the medium.

If the angle between the pass axis of a polariser and the analyser is 45^@ ,write the ratio off the intensitties of original light and the transmitted ligth after pasing through the analyser.

Two polarised are placed at 90^@ to each other and the intensity of transmitted light is zero. What will be the intensity of transmitted light, when one or more polaroids is placed between these two bisecting the angle between them? Take intensity of unpolarised light as I_0 ?

Three polaroids are placed insuch a manner that the third polaroid is crossed with the first.When a beam of unpolarised light of intenstiy 24 W m^(-2) falls on the first polaroid,the intensity of light reduces to 3W m^(-2) on emerging fromo the thrid polariod.Find the angle between the trnasmission axes of the second and third polaroid.

An unpolarised beam of light of intensity I_0 is incident on a combination of two polaroids.Find the net intesity of light of intensity transmitted by the combinatin,when the pass axis of the two polaroids are inclined to each other at an angle of 60^@ .

Two polaroids are aligned,so that the intentsity of light emerging out of them is maximum.Through what angle one of them should be rotated ,so that the intensity of light emerging out of them is reduced to half.

Two polaroids are placed at 90^@ to each other and the transmitted intensity is zero .What happens,when one more polaroid is placed betwen these two,bisectiing the angle between them.How will the intensity of transmitted light vary on further rotatint the third polaroid?

Two polaroids are set in corossed positions.A third polaroid is placed between the two making an angle theta with the pass axis of the first polaroid.Write the expession for the intensity of light trnasmitted from the second polaroid .In what orientations will the transmitted intenesity be maximum.

A paritally plane polarised bem of light is passed through a polaroid.Show graphically thervriation of the trnsmitted ligth intensity with angle of rotation of the polaroid.