Question

light propagates faster through a medium A than through another medium B.which of the two media has a higher optical density

Answer 1

7
medium A is higher optical density

Answer 2

Optical intensity is the ability of a given to allow vision or propagation. If light propagates faster in medium A than in medium B. This means that medium B has got a higher optical intensity than A  since the propagation of light in B is slower than the propagation in A.

VV