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A monochromatic beam of light of wavelength `6000 A` in vacuum enters a medium of refractive index `1.5`. In the medium its wavelength is…., its frequency is…..

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Knowledge Check

  • A light of wavelength 6000 in air enters a medium of refractive index 1.5 . Inside the medium , its frequency is v and it wavelength is lambda .

    A
    `v=5xx10^(14)Hz`
    B
    `v=7.5xx10^(14)Hz`
    C
    `lambda=4000`
    D
    `A=9000`

  • A monochromatic beam of light of wavelength lambda and frequency v goes from vacum to a medium of refractive index n. How do the wavelength and frequency of light change ?

    A
    wavelength becomes `(lambda)/(n)` and frequency nv
    B
    wavelength becomes `n lambda` and frequency becomes `(v)/(n)`
    C
    wavelength and frequency do not change
    D
    wavelength becomes `(lambda)/(n)` and frequency does not change

  • Monochromatic light of frequency 5xx10^(14) Hz travelling in vacuum enters a medium of refractive index 1.5. Its wavelength in the medium is

    A
    4000 Å
    B
    5000 Å
    C
    6000 Å
    D
    5500 Å

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