How does density of medium affect the refraction of light?

Question

How does density of medium affect the refraction of light?

Answer 1

The denser the medium, more more the regfracted ray bends towards the normal.

And vice versa.

Answer 2

whenever the light enters a medium where its speed is different it bends towards or away from the medium, this is called the refraction.Now more the density of a material more is its refractive index. and as the refractive index of the medium increases  the light bends towards its normal.

Answer 3

I have no idea. But I think that the density of an object effects the light molecules ability to pass through an object. I am testing my abilities of comprehension.