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From Brewster's law, except for polished...

From Brewster's law, except for polished metallic surfaces, the polarizing angle

A

depends on wavelength and si different for different colours

B

independent of wavelength and is different for different colours

C

independent of wavelength and is same for different colours

D

depends on wavelength and is same for different colours

Text Solution

Verified by Experts

The correct Answer is:
A
From Brewster's laws `i_(p)="tan"^(-1)(mu)`
i.e., the polarising angle depends on refractive index and hence on wavelength and therefore is different for different colours.
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NCERT FINGERTIPS-WAVE OPTICS-Polarisation
  1. Which phenomenon leads us to the conclusion that light is transverse ...

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  2. If the angle between the pass axis of polarizer and analyzer is 45^(@)...

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  3. The angle between pass axis of polarizer and analyzer is 45^(@). The p...

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  4. A transparent thin plate of a polaroid is placed on another similar pl...

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  5. Unpolarized light of intensity 32 W m^(-2) passes through three polari...

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  6. Light from sodium lamp is made to pass through two polaroid placed one...

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  7. From Brewster's law, except for polished metallic surfaces, the polari...

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  8. In case of linearly polarized light, the magnitude of the electric fie...

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  9. When ordinary light is made incident on a quarter wave plate, the emer...

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  10. At what angle of incidence will the light reflected from glass(mu=1.5)...

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  11. An unpolarized light beam is incident on a surface at an angle of inci...

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  12. Unpolarized light is incident on a plane glass surface. The angle of i...

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  13. The refractive index of a medium is sqrt(3). What is the angle of refr...

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  14. The velocity of light in air is 3xx10^(8)ms^(-1) and that in water is...

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

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  16. The critical angle of a certain medium is sin ^(-1)((3)/(5)). The pola...

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

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  18. An optically active compound

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