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Polaroids are used in...

Polaroids are used in

A

photographic cameras

B

3D movies cameras

C

Both (a) and (b)

D

Neither (a) nor (b)

Text Solution

Verified by Experts

The correct Answer is:
C
Polaroids are also used in photographic cameras and 3D movies cameras.
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Two polaroids are placed in the path of unpolarized beam of intensity I 0 such that the intensity of light emitted from the second polaroid is 9/50 l_(0). If third polaroid whosepolarization axis makes an angle theta with the polarization axis of first polaroid, is placed between these polaroids, such that the intensity of light emerging from the last polaroid is zero, then angle theta is

Two crossed polaroids are placed in the path of a light beam. In between these a third polaroid is placed whose polarisation axis makes an angle phi with the polarisation axis of the first polaroid Then, intensity of light emerging from the third polaroid, in term of phi is

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

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-WAVE THEORY OF LIGHT -EXERCISE 1
  1. When the angle of incidence on a material is 60^(@), the reflected lig...

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  2. Two Nicols are oriented with their principal planes making an angle of...

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  3. Which of the following is a dichroic crysral?

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  4. The graph showing the dependence of intensity of transmitted light on ...

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  5. Sound wave in air cannot be polarised because

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  6. In case of linearly polarised light, the magnitude of the electric fie...

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  7. Which of the following statement(s) is/are correct? I. A polaroid co...

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  8. Polaroids are used in

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  9. Figure shows the process of

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  10. Which of the following statement(s) is/are correct with reference to t...

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  11. The Brewster angle for the glass air interface is 54.74^(@) if a ray o...

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  12. Which of the following phenomenon is not common to sound and light wav...

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  13. In case of linearly polarised light, the magnitude of the electric fie...

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  14. Light is incident on a glass surface at polarising angle of 57.5^(@) T...

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  15. When the angle of incidence is 60^(@) on the surface of a glass slab, ...

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  16. Which of the following diagrams represent the veriation of electric fi...

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  17. A calcite crystal is placed over a dot on a piece of paper and rotated...

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  18. For the study of the helical structure of nucleic acids, the property ...

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  19. When light passes through two polaroids P(1) and P(2), then transmitte...

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  20. Polarising angle for water is 53^(@)4'. If light is incident at this a...

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