The part of light entering the eye from external object is_____. A. Lens B. Iris C. Corner D. Pupil
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The answer is option B= Iris
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ANSWER :
Option C
Cornea
Details :
The light enters the eye through the transparent surface called cornea.
The light then passes through the pupil and then through the aqueous humour.
The light gets refracted by the convex eye lens.
This refraction causes it to diverge and form an image on the retina.
The image formed is real , inverted and diminished.
The brain then interprets by the impulse from the retina through the optic nerve.
Hence actually the brain sees the image through the eyes.
Hope you understood the mechanism!
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