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The refractive index of water is 4/3 and...

The refractive index of water is 4/3 and that of glass 3/2. A beam of light travelling in wter enters glass. For what angle of incidence the refected light will be completely plane-polarised? (than `48^(@)22` = 1.125)

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The refractive index of water is 4//3 and that of glass is 3//2 . A beam of light enters glass from water. For what angle of incidence will the refracted light be completely polarised ?

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Knowledge Check

  • At what angle of incidence will the light reflected from glass (mu=1.5) be completely polarised

    A
    `72.8^(@)`
    B
    `51.6^(@)`
    C
    `40.3^(@)`
    D
    `56.3^(@)`

  • The refractive index of water is (4//3) and that of glass is (3//2) . If the speed of light in glass is 2xx 10^(8) m//s . The speed of light in water will be:

    A
    `1 xx 10^(8) m//s`
    B
    `(9//4) xx 10^(8) m//s`
    C
    ` (8//3) xx 10^(8) m//s`
    D
    `4 xx 10^(8) m//s`

  • The refractive index of water is 4//3 and that of glass is 5//3 . What will be the critical angle for the ray of light entering water from the glass?

    A
    `sin^(-1) (4/5)`
    B
    `sin^(-1)(5/4)`
    C
    `sin^(-1)(1/2)`
    D
    `sin^(-1)(2/1)`

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