What are the factors that affect the direction of the light when it travels to another medium?

Question

What are the factors that affect the direction of the light when it travels to another medium?

Answer 1

angle of incidence and the refractive index.

hope I helped. Bye.

Answer 2

refractive index of a medium, which is its optical density

Answer 3

Its summed up in the change in refractive index.

But on a more basic physical level, the tangental component of the B field and the normal component of the E field are continous across an interface. The change in the other, orthoginal componensts is due to either the relative permitity or permeability.

Its those properties which give rise to the refractive index.