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Why should the lens of a normal eye be fatter to look at near objects and thinner to look at distant objects?

The muscles around the lens of your eye push and pull it thicker and thinner to focus your eye on an object depending on the distance from your eye to the object. The focal length of a fat lens is shorter than the focal length of a thin lens (the light rays are bent more sharply) When you focus binoculars, you are adjusting their focal length


What thickens or thins to focus incoming light?

The lens of the eye thickens or thins to focus incoming light. When focusing on nearby objects, the ciliary muscles contract, causing the lens to become thicker and more curved, which increases its refractive power. Conversely, when focusing on distant objects, the muscles relax, allowing the lens to thin and flatten, reducing its curvature. This adjustment enables clear vision at varying distances.


Thin filaments attached to the lens of the eye?

Suspensory ligaments, also known as zonules, are thin filaments that connect the ciliary body of the eye to the lens. These structures help to hold the lens in place and change its shape for focusing on objects at different distances. When ciliary muscles contract or relax, they alter the tension in the suspensory ligaments, which in turn changes the shape of the lens to facilitate accommodation for near or distant vision.


How the lens change it shape when foucsing on near objects?

The lens changes its shape by becoming more convex (thicker in the middle) when focusing on near objects. This shape change is controlled by ciliary muscles in the eye that pull on the lens to make it rounder, allowing for proper focusing on close-up objects.


When an object is close to your eye what does the lens becomes thin or thick?

When an object is close to your eye, the lens becomes thicker. This is because the ciliary muscles surrounding the lens contract, allowing the lens to change its shape and increase its refractive power to focus on nearby objects.


What is the thin lens equation?

The thin lens equation is a relation that describes how the distance of an object from a thin lens, the distance of the image from the lens, and the focal length of the lens are related. The equation is given by 1/f = 1/do + 1/di, where f is the focal length of the lens, do is the object distance, and di is the image distance.


What is the difference between a thick convex lens and a thin convex lens?

A thick convex lens has a larger thickness and can bend light rays more than a thin convex lens. This results in a shorter focal length and stronger focusing ability for a thick convex lens compared to a thin convex lens.


A lens that is thick in the middle and thin on the edges is a?

oncave


What is a lens that is thin in the middle and thick at the edge is it convex?

A lens that is thin in the middle and thick at the edges is convex. This shape causes light rays passing through the lens to converge and focus at a point, making it a converging lens.


Which lens is THIN in the middle and thiCK At the edges?

A convex lens.


Why do convex lenses have shorter focal lengths than thin convex lenses?

The convex lenses are converging lens so when the curvature of the lens increases the focal length will decrease which helps when looking up close. A thin convex lens is for seeing things from a distant.


How does a concave len look?

a concave lens is thin in the middle, but thick on the sides. It does this: it makes what you look at bigger because it spreads out light