When a light ray travels from medium 1 to 2, in which of the following cases it bends towards the normal?
When a light ray travels from air to glass, where does it bend?
Light bends away from the normal when it travels from water to air.
When a ray of light from air enters a denser medium, it :
(a) bends away from the normal
(b) bends towards the normal
(c) goes undeviated
(d) is reflected back.