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A light wave travelling in a transparent...

A light wave travelling in a transparent homogeneous medium enters another homogeneous transparent medium of higher refractive index . The speed of light in the second medium

A

is less than that in the first medium

B

is more than that in the first medium

C

is the same as that in the first medium

D

may by more or less than that in the first medium depending on the angle of incidence

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A light wave enters from air into a medium of refractive index 1.5. The speed of light in the medium will be

    A
    `2 xx 10^(8)m//s`
    B
    `4.5 xx 10^(8) m//s`
    C
    `9 xx 10^(8) m//s`
    D
    `(330//1.5) xx 10^(8) m//s`

  • A light wave enters from air into a medium of refractive index 1.5 . The speed of light in the medium will be

    A
    `2 xx 10 ^(8) m// s`
    B
    ` 4 . 5 xx 10 ^(8) m// s`
    C
    ` 3 xx 10 ^(8) m// s`
    D
    none of these

  • Monochromatic light of wavelength lambda_1 travelling in medium of refractive index n_1 enters a denser medium of refractive index n_2 . The wavelength in the second medium is

    A
    (a) `lambda_1(n_1/n_2)`
    B
    (b) `lambda(n_2)/(n_1)`
    C
    (c) `lambda_1`
    D
    (d) `lambda((n_2-n_1)/(n_1))`

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    A glass prism placed in a homogeneous transparent medium wil deviate an incident ray

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