मराठी

A converging lens has focal length of 50 mm. What is the power of the lens?

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प्रश्न

A converging lens has focal length of 50 mm. What is the power of the lens?

संख्यात्मक
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उत्तर

Power of a lens is given by: 

Power (P) `=1/f` 

∴`p=1/(50xx10^-3)=1000/50=20.D`

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

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लखमीर सिंह Physics [English] Class 10
पाठ 2 Refraction of Light
Exercise 7 | Q 11. | पृष्ठ १३१
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