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because projectors are big and if it has a lot of stuff to show on a projector then it will have to use a convex mirror to be able to see all of it...

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12y ago

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What objects use convex lenses?

Convex lenses are used for glasses since it can bend light to provide better eyesight. Their also used for cameras, telescopes or science purposes. Also you have double convex lens in your eye.


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.


What is another name for a convex lens?

Concave and convex can refer the types of lenses used to treat refractive errors in the eyes. Concave is another word for myopic lens and convex is another name for a hyperopic lens also known as nearsighted and farsighted respectively


Why does a microscope use a convex lens?

A convex lens is used in a microscope to magnify the image of the specimen being examined. The shape of the lens allows it to focus light rays and produce a larger, clearer image for observation.


Would you use a convex lens or a concave lens to magnify an object?

A convex lens would be used to magnify an object because it converges light rays to a focal point, thereby creating a larger and more magnified image. A concave lens diverges light rays and would not be suitable for magnifying objects.