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Why does a ray of light bend when it tra...

Why does a ray of light bend when it travels from one medium to another?

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The bending of light rays when they pass obliquely from one medium to another medium called refraction of light.
Light rays get deviated from their original path while entering from one transparent medium to another medium of different optical density. This deviation (change in direction) in the path of light is due to the change in velocity of light in the different medium. The velocity of light depends on the nature of the medium in which it travels.
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When a ray of light travels from one transparent medium into another obliquely, the path of the light undergoes ____________.

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Knowledge Check

  • The ray of light gets deviated when it passes from one medium to another medium because …………….. .

    A
    the colour of light changes
    B
    the frequency of light changes
    C
    the velocity of light changes
    D
    None of these

  • When a ray of light travels from one medium to another, it bends. This phenomenon is called _______.

    A
    reflection
    B
    dispersion
    C
    refraction
    D
    interference

  • When a ray of light enters from one medium to another, then which of the following does not change?

    A
    Frequency
    B
    Wavelenght
    C
    Speed
    D
    Amplitude

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    If a ray of light passes obliquely from one medium to another, it does not suffer any deviation.

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    The change in the __________ of light rays while going from one medium to another is called refraction.

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