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Why does a ray of light bend towards nor...

Why does a ray of light bend towards normal as it passes from air to glass ?

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As `mu = (sin i)/(sin r) = ( c)/(v)`, and speed of light in glass (v) lt speed of light in air ( c)
`:. sin r lt sin I or r lt i`. Hence a ray of light bends towards normal as it passes from air to glass.
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Knowledge Check

  • A ray of light passes from water to glass. It bends:

    A
    away from the normal and speeds up
    B
    away from the normal and slows down.
    C
    towards the normal and slows down
    D
    towards the normal and speeds up

  • A ray of light psses from water to glass. It bends:

    A
    away from the normal and speeds up
    B
    away from the normal and slows down.
    C
    away from the normal and slows down
    D
    away from the normal and speeds up

  • Rays of light get refracted while passing from air to glass because

    A
    a denstiy of glass is higher than that of air.
    B
    b they can not be reflected from a glass surface.
    C
    c glass absorbs energy from the light rays.
    D
    d speed of light in glass in less than the speed of light in air.

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    In which direction a ray of light bends when it goes from water to glass?

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