जब वस्तु को एक अवतल दर्पण के वक्रता केन्द्र पर रखा जाता है‚ तो प्रतिबिम्ब का आकार होता है When object is placed at center of curvature of a concave mirror, the size of image is

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जब वस्तु को एक अवतल दर्पण के वक्रता केन्द्र पर रखा जाता है‚ तो प्रतिबिम्ब का आकार होता है When object is placed at center of curvature of a concave mirror, the size of image is