Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Optics
Which of the following is responsible for most of the refraction of light rays entering our eyes?
1
Retina
2
Iris
3
Cornea
4
More than one of the above
5
None of the above