एक वस्तु 20 सेमी वक्रता त्रिज्या वाले उत्तल दर्पण से 10 सेमी दूर रखी गई है तो उसका आवर्धन होगा An object has been kept 10 cm away from the convex mirror, having 20 cm radius of curvature. What will be its magnification?

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एक वस्तु 20 सेमी वक्रता त्रिज्या वाले उत्तल दर्पण से 10 सेमी दूर रखी गई है तो उसका आवर्धन होगा An object has been kept 10 cm away from the convex mirror, having 20 cm radius of curvature. What will be its magnification?