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Which of the two colours red and violet ...

Which of the two colours red and violet travels slower in glass prism.

Text Solution

Verified by Experts

Violet colour travels slower. This is because `mu_(v) gt mu_( r) and v = c//mu`.
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(a) The refractive index of glass is 1.5. What is the speed of light in glass? (b) Is the speed of light in glass independent of the colour of light ? If not, which of the two colours red and violet travels slower in a glass prism?

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Knowledge Check

  • Which of the following coloured light has the least speed in glass prism ?

    A
    violet
    B
    yellow
    C
    red
    D
    green

  • Assertion: Speed of light in glass is indep[endent of the colour of light. Reason : the violet colour travels faster than the red light in a glass prism.

    A
    Assertion is True, Reason is True, Reason is a correct explanation for Assertion
    B
    Assertion is True, Reason is True, Reason is not a correct explanation for Assertion
    C
    Assertion is True, Reasonis False
    D
    Assertion is False, Reason is True

  • Light travels slower in glass than in air because

    A
    a refractive index of air is less than that of glass
    B
    b refractive index of air is greater than that of glass
    C
    c density of glass is greater than that of air
    D
    d density of glass is less than that of air

    • Similar Questions

    Explore conceptually related problems

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    Calculate angle of dispersion between red and violet colours produced by a flint glass prism of refracting angle 60^@. Mu_v = 1.663 and mu_r = 1.622 .

    A student observes the above phenomenon in the lab as a white light passes through a prism. Among many other colours, he observed the position of the two colours Red and Violet. What is the phenomenon called? What is the reason for the violet light to bend more than the red light?

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