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- A concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia). The writings of Pliny the Elder (23-79) makes mention of what is arguably the earliest use of a corrective lens. According to Pliny, Emperor Nero was said to watch gladiatorial games using an emerald, presumably concave shaped to correct for myopia.
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What is another name for concave lens?
Diverging lens is another name for a concave lens. It is thinner at the center than at the edges and disperses light rays outward.
Where will a concave lens be the thinnest?
A concave lens will be thinnest at its center.
What is Another name of convex and concave lens?
A convex lens is also known as a converging lens, while a concave lens is also known as a diverging lens.
Is a lens that is thicker at the edges than in the middle a concave lens?
No, a lens that is thicker at the edges than in the middle is a convex lens. A concave lens is thinner at the center than at the edges.
A lens that is thinner in the middle than the edges is a concave lens?
Actually, a lens that is thinner in the middle than the edges is a convex lens, not a concave lens. Concave lenses are thicker in the middle and thinner at the edges, while convex lenses bulge out in the middle.
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