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A glass slab is placed over a page in wh...

A glass slab is placed over a page in which letters are printed in different colours. Will the image of all the letters lie in the same plane ?

Text Solution

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As refractive index `mu` of glass for different colours is different, therefore, images of different coloured letters will not be raised equally and hence they will not lie in the same plane.
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Knowledge Check

  • Assertion : If a plane glass slab is placed on the letters of different colours all the letters appear to be raised up to the same height. Reason : Different colours have different wavelengths.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion
    B
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    C
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    D
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    B
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    C
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    D
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  • A piece of glass is placed on a paper having letters of different colours. The letters of which colour will be raised maximum is

    A
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    B
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    C
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    D
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