Most important factor determining convergence of light rays on the retina is :
Ans. (c) Curvature of the corneaRef: Optics of the human eye, p. 15-20Cornea is the most important refracting medium responsible for convergence of light rays to the retina because of its curvature and difference in refractive index from air to cornea.
Length of the eyeball
Refractive power of the lens
Curvature of the cornea
Physical state of the vitreous
Elementary Optics