When light passes from air to a different medium, as the density of the second medium increases, the angle of refraction

Decreases

Explanation:

I think this is right tell me if it's wrong.

Increases.

Explanation:

The density of the second medium increases, the angle of refraction also increases because of higher density of the medium. In more denser medium, there is more resistance for the light ray so it bends more as compared to less denser medium in which less bending of light ray occur. The angle of refraction increases when the density of medium is more than the previous medium so we can say that the angle of refraction increases due to increase in density of another medium.

its lower due to the doppler effect.: apex