Q

For a concave mirror of focal length 0.5 m, the object distance is 0.6 m. What is the magnification?

RRB Group-D 07/10/2022 / Shift-I 2022
✓ Answer: B -5
With f = -0.5 m and u = -0.6 m, the mirror formula gives v = -3 m. Therefore m = -v/u = -5.
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