Which one of the following groups correctly identifies the orer in which light enters the eye from any source?
1 - Cornea, iris, retina
2 - Cornea, retina, iris
3 - pupil, cornea, lens
4 - pupil, lens, cornea
Here is an eye diagram that should enable you to figure the answer for yourself.
http://www.google.com/imgres?imgurl=http://www.retinaaustralia.com.au/images/eye6.gif&imgrefurl=http://www.retinaaustralia.com.au/RP.htm&h=94&w=134&sz=15&tbnid=kY7c9mTnGlIJ:&tbnh=94&tbnw=134&prev=/images%3Fq%3Deye%2Bdiagram&sa=X&oi=image_result&resnum=1&ct=image&cd=3
I hope this helps. Thanks for asking.
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The correct group that identifies the order in which light enters the eye from any source is option 3 - pupil, cornea, lens.
To understand why this is the correct answer, let's break down the process step by step:
1. Pupil: The pupil is the black circular opening in the center of the iris. It controls the amount of light that enters the eye by dilating or constricting. When exposed to bright light, the pupil constricts to reduce the amount of light entering the eye.
2. Cornea: The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. It acts as a protective outer layer and helps focus the incoming light onto the lens.
3. Lens: The lens, located just behind the iris, is responsible for further focusing the light onto the retina. It adjusts its shape to allow clear vision at different distances (accommodation).
Therefore, the correct order in which light enters the eye from any source is: pupil, cornea, lens - as stated in option 3.