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Question
a lens is a piece of transparent refractive medium bounded by two surfaces of which tleast one must be spherical why it shud be spherical?
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Solution
Hi
A lens always have one or two curved surfaces. The surface of lens is curved so that it can converge or diverge the refracted ray of lens to form an image. So, to form an image at least one of two surfaces of lens must be curved.
A lens always have one or two curved surfaces. The surface of lens is curved so that it can converge or diverge the refracted ray of lens to form an image. So, to form an image at least one of two surfaces of lens must be curved.
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