Which part of human eye has the maximum refractive index?

Correct answer: Lens

Explanation: The lens of the human eye has the highest refractive index, allowing fine focusing of light on the retina. 📚 Other Information: ▪️ The refractive index measures how much a medium bends light. ▪️ The cornea and lens together refract light entering the eye. ▪️ The lens is transparent, flexible, and biconvex in shape. ▪️ It adjusts its curvature through ciliary muscles for near and distant vision — this process is called accommodation. ▪️ The refractive index of the lens is around 1.406, higher than cornea and humours. ▪️ Lens opacity leads to cataract, a common eye disease. ▪️ Artificial lenses are used in intraocular lens implants post-cataract surgery. ▪️ Proper refraction ensures clear image formation on the retina.