What is a lens? Distinguish between a convex lens and concave lens. Which of the two is a converging lens convex lens of concave lens?
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a matter which is made of two curved surfaces.concave lens has a negative focus and convex lens has a positive focus .convex lens is known as conversing lens ..
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A lens is a transparent material with curved sides.
Convex lens is also called converging lens. It is thicker in the middle than on the sides. It converges a parallel beam of light after refraction.
Concave lens is also called diverging lens. It is thinner in the middle than on the sides. It diverges parallel beam of light after refraction.
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