usualy concave mirror.
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∙ 12y agoA refracting telescope is a type of optical telescope. It was used in astronomical telescopes and spy glasses. Objective lens are used to produce the image.
Concave lenses are used in glasses for people who are near-sighted. Convex lenses are used in glasses for people who are far-sighted.
Many astrologers use an optical or a corrector lens.
A rearview mirror is typically used by a motorist to see the road behind them. This type of mirror is usually located on the windshield or dashboard and provides a reflection of the rear view of the vehicle.
The type of lense is a convex lense
Lens, light, mirror
Images formed by a concave lens are virtual, upright, and reduced in size, while images formed by a convex mirror are virtual, upright, and smaller than the object. Both types of images result from diverging light rays.
we can use convex lens(having tapered ends) for that. but the magnifying capability depends on the power the lens. A magnifying glass works by creating a magnified virtual image of an object behind the lens. The distance between the lens and the object must be shorter than the focal lenght of the lens for this to occur. Otherwise, the image appears smaller and inverted, and can be used to project images onto surfaces.
A magnifying glass is actually a convex LENS. The object you are looking at is closer to the lens but pass the focal point therefore you create an imaginary image that is larger than the actual object. An imaginary image is an image that you cannot focus on a screen.
Fresnel lens
because the mirror used is concave mirror.
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