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Standard X
Physics
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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Fill in the following blanks with suitable words:
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(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.......
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