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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 |
The ______ of a lens is the ______ of the circular edge of the lens.
रिक्त स्थान भरें
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उत्तर
The aperture of a lens is the diameter of the circular edge of the lens.
Explanation:
The aperture of a spherical lens is defined as the effective diameter of its circular edge or outline.
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अध्याय 2: Light - Graded Assignment 2.2 [पृष्ठ १३२]
