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The velocity of light in glass is 2 xx 1...

The velocity of light in glass is `2 xx 10^(8)ms^(-1)` while that in vaccum is `3 xx 10^(8)ms^(-1)`. By how much would an ink dot appeat to be raised when covered by a glass plate of 4.5 cm thickness.

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The correct Answer is:
1.5 cm
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SL ARORA-RAY OPTICS-Problems For Self Practice
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