The focal length of a concave mirror is

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

Problem

The focal length of a concave mirror is −20 cm-20\,\text{cm}. Match the object distances in Column II with the magnitudes of magnification in Column I.
Column IColumn II
(a) 22(p) 10 cm10\,\text{cm}
(b) 12\frac{1}{2}(q) 30 cm30\,\text{cm}
(c) 11(r) 20 cm20\,\text{cm}
(d) 14\frac{1}{4}(s) None of these

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