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What is the power of a convex lens of focal length 0.5 m?

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प्रश्न

What is the power of a convex lens of focal length 0.5 m?

संख्यात्मक
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उत्तर

​​Power of a lens is given by: 
Power `(p)=1/f` 

∴`p=1/0.5=2D`

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पाठ 2: Refraction of Light - Exercise 7 [पृष्ठ १३१]

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लखमीर सिंह Physics Part 1 [English] Class 10
पाठ 2 Refraction of Light
Exercise 7 | Q 10. | पृष्ठ १३१
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