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07.What is meant by rarer and denser medium?

Answer» <p>Optically denser medium, the medium in which the speed of light is lesser as compared to rarer medium.i.e. water</p><p>Optically rarer medium, the medium in which the speed of light increases compared to denser medium.i.e. Air</p><p>The denser and rarer medium don't depend upon the density of the medium.</p>


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