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.

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.

Light from an ordianry source(say a sodium lamp) is passed through a polaroid sheet P_1 .The transmitted light is then made to pass through a second polaroid sheet P_2 ,which can be rotated so that the angle (theta) betwen the two polaroid sheets varies from 0^@ to 90^@ .Show graphically the variation of he intensity of light transmitted by P_1 and P_2 as a function of the angle theta .Take the incident beam intensity as I_0 . Why does the light from a cleear blue portion of the sky,show a rise and fall on intesnity,when viewed through a polaroid ,which is rotated?

A beam of unpolarised ligth is made to fall,from air ,on its boundary with another transparent medium of refrective index mu .The reflected beam is viewed through a rotating analyser.Show on a graph,the variation of intensity of light trasmitted through the analyser with the angel between the pass axis of the analyser and the direction of the reflected beam.

In these question, a statement of assertion followed by a statement of reason is given .Choose the correct answer out of the following choices: Assertion and reason both are correct statements and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Assertion: The displacement current goes through the gap between the plates of the capacitor ,when the charge of the capacitor does not change. Reason: The displacement current arises in the region in which the electric field and hence the electric flux does not change with the time.

Draw a graph showing the variation of intensity of polarized light transmitted by an analyser.

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?

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 ?

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 minimum adn

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.