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Which of the is not an aplicatinoof of ...

Which of the is not an aplicatinoof of polaroid ?

A

Sun glasses

B

Study of optical activity

C

Determining the resolving power of an optical device

D

3-D movies

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The correct Answer is:
C
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What is a polaroid ?

Which of the follwing is NOT the use of polaroid ?

Unpolarised light of intensity I is incidnet of the polaroid. What will be the intensity of light transmitted by the polaroid?

Two 'crossed' polaroids A and B are placed in the path of a light-beam. In between these, a third polaroid is C is placed whose polarisation axis makes an angel theta with a polarisation axis of the polaroid A. If the intensity of light emerging from the poloaroid a is I_(o) then show that the intensity of light emerging from polaroid B will be 1/4I_(o) sin^(2)theta.

In a series of polaroids placed in such a way that optical axis of each polaroid makes same angle with the next one. When unpolarized light falls on first and if no light is coming out from the last polaroid then by using how many number of polaroids in series this can be achieved :

The polaroids are placed in the path of unpolarized beam of intensity I_(0) such that no light is emitted fromthesecond polarid. If a third polaroid whose polarization axis makes an angle theta with the polarization axis of first polaroid, is placed between these4 polariods then the intensity of light emerging from the last polariod will be

Which of the following polaroids is developed by Land and Rogger ?

TARGET PUBLICATION-WAVE THEORY OF LIGHT -EVALUATION TEST
  1. Which of the is not an aplicatinoof of polaroid ?

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  2. lamdaa and lamdam are the wavelengths of light in air and medium resp...

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  3. A clear sheet of polaroid is placed on top of a similar sheet so that...

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  4. Unpolarised light of internsity 32 Wm^(-2) passes through three polari...

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  5. With what speed should a glaxy move with respect to us so that a certa...

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  6. A beam of unpolarised light having flux 10^(-2) watt falls normally on...

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  7. Assertion : If light is polarised by reflection, then the angle betwee...

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  8. The speactral line emitted by a star, has a wavelength of 6800 Å when ...

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  9. A cylindrical wavefront spreads form a line source which is comparable...

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  10. A lens of focal length f gives diffraction pattern of Fraunhoffer type...

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  11. A parallel beam of monochromatic light is incident on a glass slab at ...

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  12. For passage of monochromatic beam of light in a medium of refractive i...

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  13. Velocity of light in deamond is (2/5)^(th) that in air. Velocity of l...

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  14. For navigatio purpose, in polar regions

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  15. When a plane wavefront is incident on a double convex lens, the refrac...

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  16. As a spherical wavefront propagates, the amplitude (a) of a spherical ...

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  17. Assertion: Speed of light in glass is indep[endent of the colour of l...

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  18. Assertion : Stars are often photographed with the help of telescope fi...

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  19. Assertion : If theta is the angle between the planes of transmission ...

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  20. Ordinary light incident on a glass slab at the polarising angle suffer...

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  21. A mixture of plane polarised and unpolarised light falls normally on a...

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