CTET 2 Math and Science Sep 2015 Paper

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Question : 70 of 120

Marks: +1, -0

Medium A is optically denser than Medium B. Which one of the following statements is true ?

Speed of light is more in medium B than in medium A.
Speed of light is same in both A and B.
Cannot be compared.
Speed of light is more in medium A than in medium B.

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