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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.

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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.


What is the effect of the convex lens in experiment the liquid 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.


Is a magnifying lens concave or convex in shape?

A magnifying lens is typically convex in shape.


What can the amount that light bends as it passes through a lens be controlled through?

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.


Which lens is a converging lens a double-convex lens or a spherical-convex lens or a plano-concave lens or a convexo-concave lens?

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.

Related Questions

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.


What structure changes its shape to focus light at the back of the eye?

The lens of the eye also called the crystalline lens.


What is the effect of the convex lens in experiment the liquid 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.


What shape is a lens?

a shape of a lens is curved outwards and concave one are curved in wards


Is a magnifying lens concave or convex in shape?

A magnifying lens is typically convex in shape.


What lens is a converging lens double-convex spherical-convex plano-concave or convexo-concave lens?

A converging lens is also known as a magnifying lens. The shape of the lens is a double convex shape.


What role does the lens play?

The role of a lens is to converge and or diverge light depending on the shape of the lens.


What shape has 2 faces1 edge and no vertex?

A lenticular shape: the shape of a lens.


Does the shape of the lens change when you sqeeze it?

NO


What are the irregularities in the shape of the lens?

Astigmatism


What shape is the lens?

A concave circle


What shape is the lens in a camera?

Rectangle