सिद्ध कीजिए कि अवतल दर्पण की फोकस दूरी उसकी वक्रता त्रिज्या की आधी होती है ?

सिद्ध कीजिए कि अवतल दर्पण �

1.	सिद्ध कीजिए कि अवतल दर्पण की फोकस दूरी उसकी वक्रता त्रिज्या की आधी होती है ?
Answer» A ray of light AB traveling parallel to the principal axis PC is incident on a convex MIRROR at B. After REFLECTION, it goes to Dand appear to be coming from the focus F. The distance PF= focal LENGTH f. ... Thus, for a spherical mirror (both for a concave and for convex), the focal length is half of RADIUS of curvature.

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सिद्ध कीजिए कि अवतल दर्पण की फोकस दूरी उसकी वक्रता त्रिज्या की आधी होती है ?

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