the iris!!! iris is the coloured part of your eye,and its a muscle that controls your pupil(the black dot) to let how much light you're eye needs. The iris regulates the amount of light by controlling the size of the pupil.
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.
In an experiment using a liquid lens, the convex lens helps to focus the light passing through the liquid lens. This allows for the manipulation of the shape of the liquid lens which can change its focal length. By adjusting the curvature of the liquid lens and using the convex lens, the overall optical properties of the system can be controlled for various applications.
A magnifying lens is typically convex in shape.
The amount of bending of light passing through a lens can be controlled by changing the curvature of the lens surface. A flatter lens will cause less bending, while a more curved lens will cause more bending. The material of the lens and the wavelength of light can also affect the amount of bending.
Your are mixing properties. Converging lens is always thicker in the centre and thinner at the edges. The other cathegory is the geometry of shape of the surfaces of the lens. Convex means that the shape is similar to the outer surbace of a sphere, concave means that the shape is similar to the iner surface of a sphere (or: convex = lower side of a spoon as we use it for sampling a soup; concave: upper (inner) shape of the spoon). A double convex lens is always a converging lens. A plano-concave lens is always a diverging (not converging) lens. A convexo-concave lens is the most usual shape of a lense used in spectacles. It can be either converging or diverging, depending on the radii of the surfaces.
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.
The lens of the eye also called the crystalline lens.
In an experiment using a liquid lens, the convex lens helps to focus the light passing through the liquid lens. This allows for the manipulation of the shape of the liquid lens which can change its focal length. By adjusting the curvature of the liquid lens and using the convex lens, the overall optical properties of the system can be controlled for various applications.
a shape of a lens is curved outwards and concave one are curved in wards
A magnifying lens is typically convex in shape.
A converging lens is also known as a magnifying lens. The shape of the lens is a double convex shape.
The role of a lens is to converge and or diverge light depending on the shape of the lens.
A lenticular shape: the shape of a lens.
NO
Astigmatism
A concave circle
Rectangle