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Define the Term Focal Length of a Lens. - Physics

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प्रश्न

Define the term focal length of a lens.

उत्तर

The distance from the optical centre O of the lens to its second focal point is called the focal length of the lens. 

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पाठ 5: Refraction through a Lens - Exercise 5 (A) 1 [पृष्ठ १०९]

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सेलिना Physics [English] Class 10 ICSE
पाठ 5 Refraction through a Lens
Exercise 5 (A) 1 | Q 21 | पृष्ठ १०९
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