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For that mirror (u = 25 cm, object height 4 cm, v = -37.5 cm), the image height is
A-6 cm
B-2.4 cm
C+6 cm
D-1.5 cm
Answer & Solution
Correct answer: A. -6 cm
1. Magnification m = -v/u = -(-37.5)/(-25) = -1.5.
2. Image height h_i = m x h_o = -1.5 x 4.
3. So h_i = -6 cm: inverted (minus) and enlarged (size 6 cm).
_Source: AP/TS SCERT Class 10 Physical Science, "Reflection of Light at Curved Surfaces"_
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