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Three polaroids are placed insuch a mann...

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.

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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?

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 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?

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 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 .

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 P_1 and P_2 are placed with their pass axes perpendicular to each other.An unpolarised ligth of intensity I_0 is incident on P_1 .A third polaroid P_3 is kept in between P_1 and P_2 such that its pass axis makes an angle of 30^@ with that of P_1 .Determine the intensity of light tranjsmitted throug P_1,P_2 and P_3 .

Two polaroids P_1 and P_2 are placed with their pass axees perpendiculat to each otehr.An unpolarised ligth of intensity I_0 is incident on P_1 .A third polaroid P_3 is kept in between P_1 and P_2 such that its pass axis makes an angle of 45^@ with tha tof P_1 .Dtermine the intensity of light transmitted through P_1,P_2 and P_3 .

MODERN PUBLICATION-Polarisation of Light-EXERCISE
  1. Three polaroids are placed insuch a manner that the third polaroid is ...

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  2. What do you understand by polarisation of light ?Describe an experimen...

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  3. Prove that electromagnetic waves are transverse in nature.

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  4. What information do we get about the nature of light by polarisation?

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  5. Describe briefly,with the help of suitable diagram,how the transverse ...

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  6. Describe briefly,with the help of suitable diagram,how the transverse ...

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  7. Which type of waves show the property of polarisation?

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  8. How does an unpolarised ligth get polarised,when it is pased through a...

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  9. What is a plane polarised e.m. wave?

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  10. What is linearly polarised light?

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  11. Show ,with the help of diagram,how unpolarised sunnlight gets polarise...

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  12. The polarising angle of a medium is 60^@. What is refractive index of ...

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  13. Polarised light can be produced by

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  14. What is polarisation of light? Explain polarisation of light by reflec...

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  15. State Brester's law of polarisation of light.

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  16. State Brewter's law.Show that the reflected ray and the refracted ray ...

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  17. State Brewster's law. Obtain the relation between the Brewster angle a...

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  18. A ray of light is incident on a medium at polarising angle .What is th...

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  19. A beam of unpolarised ligth is incident on a glass-air interface. Show...

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  20. A ray of light is incident on a medium at polarising angle .What is th...

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  21. A beam of unpolarised ligth is made to fall,from air ,on its boundary ...

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