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Most of the refraction of light entering the eye occurs at the:
ACrystalline lens
BCornea
CRetina
DOptic nerve
Answer & Solution
Correct answer: B. Cornea
1. Light first enters the eye through the transparent cornea.
2. Because the cornea bulges and the air-cornea index difference is large, most bending happens there.
3. The crystalline lens contributes only a finer adjustment.
_Source: NCERT Class 10 Science, Ch 10 "The Human Eye and the Colourful World", §10.1_
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