Question

It Medium A is optically denser than medium B them compare the speed of light in broth the mediums.
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Answer 1

Answer:

The denser medium have less speed of light when passed through it and Medium B is less dense

So it must have high speed of light

Answer 2

Answer:

Speed of light is inversely proportional to the optical denaity of the medium.

u = c/v

where u = refractive index of the medium

And u is the measure of optical density

c = speed of light in vacuum

v = speed of light in the medium

Hence, light will travel faster in medium B.