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What is polaroid?...

What is polaroid?

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Polaroid is a device made out of synthetic crystalline material in which tiny crystals are aligned parallel to each other and exhibit the property of dichroism.
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An unpolarised beam of intensity 2I^2 passes through a thin polaroid. Assuming that no light is absorbed by the polaroid, the amplitude of the emergent beam will be :

Three polaroids are placed one above the other, such that the first and the last polaroids are crossed with each other. If the angle between the transmission axis of the first two polaroids is 45^@ , then what is the percentage of incident light transmitted through the combination of three polaroids ?

The material used for manufacturing polaroids is

Unpolarized light of intensity 32 W//m^2 is incident on the combination of three polaroids. The first and last polaroids are crossed. If the intensity of the light transmitted through the combination be 3 W//m^2 , then what is the angle between the transmission axes of first two polaroids ?

When a polaroid is rotated the intensity of light does not vary. The incident light might be:

When a polaroid is rotated the intensity of light varies but never reduces to zero. It shows that the incident light is :

When a polaroid is rotated, the intensity of light varies and ultimately reduces for a particular orientation to zero. It shows that the incident light is :

When a polaroid is rotated the intensity of light varies but never reduces to zero. It shows that the incident light is :

SUBHASH PUBLICATION-WAVE OPTICS-NUMERICALS WITH SOLUTIONS
  1. What is polaroid?

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  3. In young's double slit experiment , two slits 0.18 mm apart illuminate...

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  4. In young's double slit experiment, the total width of 10 fringes is ob...

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  7. Light of wavelength 6000 overset(@)A is used to obtain interference fr...

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  8. Calculate the fringe width of the interference pattern. Given waveleng...

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  10. Two towers on top of the two hills are 40 km part. The line joining th...

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  11. A parallel beam of light of wavelength 500nm falls on a narrow slit an...

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  12. The diameter of the objective of a telescope is 1.2m. Ig the wavelengt...

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  13. Calculate the resolving power of a telescope whose limit of resolution...

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  14. In an experiment with a microscope, light of wave length 4240 overset(...

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  15. Calculate the resolving power of a microscope, whose limit of resoluti...

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  16. The semi vertical angle subtended by two points of an object at the ob...

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  17. If the limit of resolution of the eye is 1' of an arc then calculate i...

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