Question:
An object is placed 30 cm in front of a concave mirror (radius of curvature 40 cm). Find: (i) image position (ii) magnification
An object is placed 30 cm in front of a concave mirror (radius of curvature 40 cm). Find: (i) image position (ii) magnification
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Remember sign conventions for u, v, and f.
Updated On: Jan 13, 2026
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Solution and Explanation
(i) 1/v + 1/u = 1/f. u = -30cm, f = -R/2 = -20cm. Solving for v: v = -60cm. (ii) m = -v/u = -(-60)/(-30) = -2.
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