मराठी

The power of a lens is + 0.2 D. Calculate its focal length.

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प्रश्न

The power of a lens is + 0.2 D. Calculate its focal length. 

बेरीज
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उत्तर

​Power of a lens is given by: 

Power (P) =`1/f` 

`f=1/p` 

`f=1/0.2=5m` 

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पाठ 2: Refraction of Light - Exercise 7 [पृष्ठ १३२]

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लखमीर सिंह Physics [English] Class 10
पाठ 2 Refraction of Light
Exercise 7 | Q 14. | पृष्ठ १३२
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