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Which type of lens has a positive power?

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Question

Which type of lens has a positive power?

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Solution

A convex lens has positive power.

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Chapter 2: Refraction of Light - Exercise 7 [Page 131]

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Lakhmir Singh Physics Part 1 [English] Class 10
Chapter 2 Refraction of Light
Exercise 7 | Q 5. (a) | Page 131

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