Formation of image of an Eye
Formation of Image of an Eye
Formation of Image:
Light is bent by refraction at the cornea and the lens such that a sharp image is formed on the retina. The crystalline lens is made up of jellylike, fibrous substances that make it elastic. The cilliary muscles, to which the lens is attached, can alter the curvature and thickness of the lens.
The average of the refractive indices of the materials of the lens is about 1.396. The liquids in front of and behind the lens have a refractive index of about 1.336. When light enters the eye from air, most of the bending occurs at the cornea itself because of the sharp change in refractive index
The average of the refractive indices of the materials of the lens is about ________________. | |||
| Right Option : A | |||
| View Explanation | |||
The ________________ to which the lens is attached, can alter the curvature and thickness of the lens. | |||
| Right Option : C | |||
| View Explanation | |||
The liquids in front of and behind the lens have a refractive index of about ______________ . | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
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Om Umang
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Eshan Arora
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8thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
