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The speed of light in glass is 2.0 xx 1...

The speed of light in glass is ` 2.0 xx 10^(8) ms ^(-1)`. Does it violate the second postulate of special relativity ?

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Knowledge Check

  • The speed of light in vaccum is _______ ms^(-1) .

    A
    `3 xx 10^(8)`
    B
    `388 xx 10^(8)`
    C
    `0.38 xx 10^(8)`
    D
    `3.6 xx 10^(8)`

  • If the velocity of light in a medium is 2.25 xx 10^(8) ms^(-1) then the refractive index of the medium will be

    A
    1.5
    B
    0.5
    C
    1.33
    D
    1.73

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    The speed of light in air is 3 xx 10^(8) ms^(-1) and in glass it is 2 xx 10^(8) ms^(-1) . What is the refractive index of glass ?

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    a. The refractive index is glass is 1.5. What is the speed of light in glasss? (Speed of light invacuum is 3.0xx10^(8)ms^(-1) ) b. Is the speed of light inglass independent of he colour of light? If not, which of the two colours red and violet travels slower in a glass prism?

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