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Cornea

When light ra...

Question

When light rays enter the eye, most of the refraction occurs at the:

A

Pupil

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B

Iris

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C

Outer surface of cornea

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D

Crystalline lens

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Solution

The correct option is C Outer surface of cornea
Most of the refraction of the light rays entering the eye occurs at the outer surface of the cornea.

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Similar questions

Q. Question 12
When light rays enter the eye, most of the refraction occurs at the

(a) crystalline lens
(b) outer surface of the cornea
(c) iris
(d) pupil

Q. Maximum refraction of light rays entering the eye takes place from

Q. Fill in the following blanks with suitable words:
(a) Most of the refraction of light rays entering the eye occurs at the outer surface of the.............
(b) The part of eye sensitive to light is...................
(c) The part of eye which alters the size of the pupil is............
(d) When light is dim, the pupil becomes................
(e) The iris controls the amount of................entering the eye.
(f) The ciliary muscles control the shape of the ...............
(g) To bring light from a distant object to a focus on the retina of the eye, the convex eye-lens needs to be made..........
(h) To bring light from a near object to a focus on the retina of the eye, the convex eye-lens need to be made.......

Q. The human eye can be regarded as a single spherical refractive surface having curvature of cornea

7.8 mm

. If a parallel beam of light comes to focus at

3.075 cm

behind the refractive surface, the refractive index of the eye is

Q. When light enters our eyes, the first refraction of light takes place at?

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