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प्रश्न
Select the most appropriate word from the given box and fill in the following blanks.
| refracted diameter converging power convex small concave dioptre diverging focal length two aperture |
Power of a lens is the reciprocal of ______ of the lens.
रिकाम्या जागा भरा
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उत्तर
Power of a lens is the reciprocal of focal length of the lens.
Explanation:
The power (P) of a lens is defined as the reciprocal of its focal length (f) measured in metres (P = 1/f).
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पाठ 2: Light - Graded Assignment 2.2 [पृष्ठ १३२]
