Difference Between Concave and convex lens without touching them.
amrit1826:
concave lens a lens that is thiner in the middle then at the adges.it diverges the incident ray away from its principal axis./convex lens a lens that is thicker in the middle then at the adges.it convergs the incident rays to wards its principal axis
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We will keep the lens close to some page of a book and see the print of the book through it. If the letters of the book appear enlarged, it is a convex lens and if they appear diminished, it is concave lens.
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A lens which is thicker in the middle and thinner at the edges is called a convex lens.
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