Question

Speed of light in a medium with n > 1

is the same as in free space
is greater than in free space
is less than in free space
depends on the transparency of the medium

Answer 1

it and i quote you "is less than in free space

Step-by-step explanation:

i cant explain

Answer 2

C

Step-by-step explanation:

Without thinking, the answer is C.

The problem is with D. Of course it is going to depend on the transparency. If the material is a rock, then the light won't go through, and n >>>1. I don't think you are intended to think that way, but I sure wish D wasn't there. I'd answer C, but be prepared to see it come out as D.