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(a) Explain how an unpolarised light get...

(a) Explain how an unpolarised light gets polarised when incident on the interface separating the two transparent media.
(b) Green light is incident at the polarising angle on a certain transparent medium. The angle of refraction is `30^(@)`. Find
(i) Polarising angle, and
(ii) refractive index of the medium.

Text Solution

Verified by Experts

The correct Answer is:
(b) (i) `60^(@)`, (ii) `sqrt3`
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Knowledge Check

  • Polarising angle of a transparent medium is 60^(@) , angle of refraction will be

    A
    `120^(@)`
    B
    `45^(@)`
    C
    `30^(@)`
    D
    `60^(@)`

  • An unpolarised light is incident on a surface separating two transparent media of different optical densities at the polarizing angle. Then the reflected ray and refracted ray are

    A
    parallel to each other
    B
    perendicular to each other
    C
    inclined to each other making an angle `45^(@)`
    D
    None of the above

  • AN unpolarised beam of light is incident at the polarising angle on the surface of a transparent medium of refractive index 1.6. The angle of refraction in the medium is

    A
    `58^(@)`
    B
    `29^(@)`
    C
    `32^(@)`
    D
    `42^(@)`

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