Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Optics Refraction and Reflection
When light rays travel from air to water ________
1
it bends towards the normal
2
It proceeds undeviated
3
it bends away from the normal
4
More than one of the above
5
None of the above