Question

Parallel rays are incident on a transparent sphere along its one diameter.
After refraction, these rays converge at the other end of this diameter. The
refractive index for the material of sphere is
1) 1
2) 1.5
3) 1.6
4) 2
the answer is 2 how ???​

Answer 1

Answer:

4

Explanation:

Parallel rays (in air) are incident on a transparent sphere along its one diameter. After refraction, these rays converge at the other end of this diameter.