Two polaroids are placed at `90^@` to each other.What happens,when(N-1) more polaroids are inserted between them?Their axis are equally spaced.How does the trnsitted intensity behave ffor large N?

Two polaroids are placed at 90^@ to each and the transmitted intensity is zero. What happens when one of them is rotated?

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 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.

Two polaroids A and B are kept in crossed poisiton.How should a third polariod C be placed between them so that the intensity of polarised ligth transmitted by polaroid B reduces to 1//8th of the intensity of unpolarised light incident on A?

Two equal magnetic poles placed 25 cm apart in air exert a fore o 4xx10^-3N on each other. What should be the distance between them, so that force exerted by them on each other becomes 0.1 N?

Two concentric ellipses are such that the foci of one are on the other and their major axes are equal. Let ea n de ' be their eccentricities. Then. the quadrilateral formed by joining the foci of the two ellipses is a parallelogram the angle theta between their axes is given by theta=cos^(-1)sqrt(1/(e^2)+1/(e^('2))=1/(e^2e^('2))) If e^2+e^('2)=1, then the angle between the axes of the two ellipses is 90^0 none of these

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?

Two polaroids P_1 adn P_2 are placed with their pass xes perpendicular to each other.An unpolarised ligth of intensity I_0 is incident on P_1 .a thid polaroid P_3 is kept in betwen P_1 and P_2 such that its axis makes an angle of 60^@ with that of P_1 .determine the intensity of light transited through P_1,P_2 and P_3 .