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If the angle between the pass axis of po...

If the angle between the pass axis of polariser and analyser is `45^(@)`, write the ratio of intensities of original light and the transmitted light after passing through analyser.

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If the angle between the pass axis of polariser and the analyser is 45^(@) , write the ratio of the intensities of original light and the transmitted light after passing through the analyser.

What is the angle between the plane of polariser and that of analyser to reduce the transmitted light intensity to half ?

Knowledge Check

  • The angle between pass axis of polarizer and analyser is 45^(@) . The percentage of polarized light passing through analyser is

    A
    `100%`
    B
    `50%`
    C
    `25%`
    D
    `75%`

  • If theta is the angle between the transmission axes of the polarizer and the analyser and l_0 be the intensity of the polarized light incident on the analyser, then Intensity of transmitted light through analyser would be

    A
    `(I_0 costheta)^2`
    B
    `sqrt2 I_0cos^2theta`
    C
    `I_0/sqrt2cos^2theta`
    D
    `I_0cos^2theta`

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

    A
    maximum
    B
    minimum
    C
    it depends on the type of analyser
    D
    partially maximum

    • Similar Questions

    Explore conceptually related problems

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

    How does an unpolarised light get polarised when passed through a polaroid ? Two polaroids are set in crossed position. A third polaroid is placed between the two making an angle theta with the pass axis of the first polaroid. Write the expression for the intensity of light transmitted from the second polaroid. in what orientations will the transmitted intensity be (i) minimum and (ii) maximum ?

    The angle between the transmission axes of an analyser and a polariser is 60^(@) . If I_(0) is the intensity of unpolarised light incident on the analyser, the intensity of the light transmitted by the analyser is

    Assertion : If theta is the angle between the planes of transmission of two analysers then the intensity of emergent light is proportional to cos^@ theta . Reason : In the propagation of electromagnetic waves, the angle between the direction of propogation and plane of polarisation is pi/2 .

    The graph showing the dependence of intensity of transmitted light on the angle between polariser and analyser is

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