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A light ray is incident on air-liquid in...

A light ray is incident on air-liquid interface at `45^@` and is refracted at `30^@.` What is the refractive index of the liquud? For what angle of incidence will the angle between reflected ray and refracted ray be `90^@? (AS_(7))`

Text Solution

Verified by Experts

The correct Answer is:
`1.414, 54.7^@`
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Knowledge Check

  • A ray of light is incident on liquid surface such that reflected and refracted ray are perpendicular to each other. If refractive index is 1.4, find angle of incident.

    A
    `54.5^@`
    B
    `55.4^@`
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    `5.45^@`
    D
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  • In polarisation by reflection of light angle between reflected light and refracted light is

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    `pi`
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    `(pi)/(2)`
    C
    `2pi`
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    `(pi)/(4)`
  • Unpolarised light is incident from air on a plane surface of a material of refractive index u! At a particular angle of incidence mu it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation ?

    A
    `I =tan^(-1)((1)/(mu))`
    B
    Reflected light is polarised with its electric vector parallel to the plane of incidence.
    C
    `i=sin^(-1)((1)/(mu))`
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