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Restate the question in your own words, predict the answer before checking the options, and confirm that the explanation and correct-option field both point to Lens.
x) for near vision; when they relax, the lens flattens for far vision. Light first passes through the cornea (which provides most of the refraction), then through the lens which fine-tunes the focus onto the retina. Cornea — The cornea is the transparent outer layer of the eye that provides the major part of the eye's refracting power. Iris — The iris is the colored, circular part of the eye that regulates the size of the pupil (amount of light entering the eye). It controls light entry, not focusing. Pupil — The pupil is simply an opening (hole) in the center of the iris that allows light to enter the eye. It is not a physical structure that can focus light — it only regulates the amount of light entering. 📝 Important Note: Parts of the eye and their functions — Cornea: refracts light; Lens: focuses light (accommodation); Iris: controls pupil size; Retina: contains photoreceptors (rods=dim light, cones=color); Optic nerve: transmits signals to brain. Defects: Myopia (short-sightedness) = concave lens; Hypermetropia (far-sightedness) = convex lens. SSC CGL commonly asks about eye parts and their functions.
FAQ
Common questions and clear answers for this topic.
The digestive, circulatory, nervous, and skeletal systems appear most frequently, along with sensory organs and basic endocrine functions.
Yes, the human body has 206 bones, and questions about the largest, smallest, and total bone count appear fairly often.
Questions usually cover blood group compatibility, the role of platelets in clotting, and basic facts about blood pressure and heart function.
No, most questions focus on what each organ does and why, rather than the detailed biochemical processes behind it.
Linking facts to real-life observations, like why pulse is checked at the wrist, makes them easier to recall than memorizing textbook lines.
