Question : The part of the eye having the larger refractive index is:
Option 1: cornea
Option 2: aqueous humor
Option 3: lens
Option 4: vitreous humor
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Correct Answer: lens
Solution : The correct option is the lens.
Refractive Index is defined as the ratio of the speed of light in a vacuum (or air) to the speed of light in the medium. The refractive indices of the cornea, aqueous humor, lens and vitreous humor are 1.376, 1.336,1.413, and 1.336 respectively. The lens bends light rays to form a clear image on the retina. As the lens is elastic, it can change shape, getting fatter to focus on close objects and thinner for distant objects.
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