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What is a Lens? - Science

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Question

What is a lens? 

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Solution

A lens is an optical device that transmits and refracts a ray of light, and converges or diverges a beam of light.

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Chapter 5: Refraction of Light - Exercise 3 [Page 240]

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Lakhmir Singh Physics (Science) [English] Class 10
Chapter 5 Refraction of Light
Exercise 3 | Q 16.1 | Page 240
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