The human eye can be regarded as a single spherical refracting surface – McqOptions

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1.	The human eye can be regarded as a single spherical refracting surface of curvature of radii 7.8 mm. If a parallel beam of light comes to focus at 3.075 cm behind the refracting surface, the refractive index of the eye is
A.	1.34
B.	1
C.	1.5
D.	1.86
Answer» B. 1

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