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प्रश्न
What is optical centre of a thin lens? Draw diagram/diagrams to illustrate it.
टिप्पणी लिखिए
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उत्तर
The optical centre of a thin lens is a point O on the principal axis of the lens such that a ray of light directed towards it, passes undeviated and undisplaced from the lens. The diagram illustrating it in a convex and a concave lens are shown alongside.
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