When a beam of light moves from a rarer medium to a denser medium:
It bends towards the normal
It goes undeviated
It bends away from the normal
It bends at 90o
When a beam of light moves from rarer to denser medium, it bends towards the normal.
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.