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Solution for How Will You Differentiate Between a Convex and a Concave Lens by Looking at (I) a Distant Object, (Ii) a Printed Page? - ICSE Class 10 - Physics

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Question

How will you differentiate between a convex and a concave lens by looking at (i) a distant object, (ii) a printed page?

Solution

(i) On seeing a distant object through the lens, if its inverted image is seen, then the lens is convex, and if the upright image is seen, then the lens is concave.
(ii) On keeping the lens near a printed page, if the letters appear magnified, then the lens is convex, and if the letters appear diminished, then the lens is concave.

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Solution How Will You Differentiate Between a Convex and a Concave Lens by Looking at (I) a Distant Object, (Ii) a Printed Page? Concept: Refraction of Light - Image Formation in Lenses Using Ray Diagrams - Concave Lens.
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