Question

Light propagates faster through a Medium A than through another Medium B.
(a) Which of the two media has a higher optical density?
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Answer 1

Answer:  

Medium 2 has higher optical density. More the optical density, lesser the speed of light through that medium. Hence Medium 1 is less optically dense than Medium 2.

Answer 2

Answer:

medium B

Explanation:

light travels faster in rarer medium and travels slower in denser medium.so according to question medium A is rarer and B is denser.So B has higher optical density..Plzz mark me as the brainliest and the girls who would like to be my gf just follow me