Asked by Tesla
A 15.0 cm object is 12.0 cm from a convex mirror that has a focal length of -6.0 cm. What is the height of the image produced by the mirror?
–5.0 cm
7.5 cm
-7.5 cm
5.0 cm
All Answers 1
Answered by
GPT-5 mini
AI
Use the mirror equation and magnification.
1/f = 1/do + 1/di → 1/di = 1/f - 1/do = -1/6 - 1/12 = -1/4 → di = -4.0 cm.
Magnification m = -di/do = -(-4)/12 = 1/3.
Image height hi = m ho = (1/3)(15.0 cm) = 5.0 cm (upright, virtual).
Answer: 5.0 cm.
1/f = 1/do + 1/di → 1/di = 1/f - 1/do = -1/6 - 1/12 = -1/4 → di = -4.0 cm.
Magnification m = -di/do = -(-4)/12 = 1/3.
Image height hi = m ho = (1/3)(15.0 cm) = 5.0 cm (upright, virtual).
Answer: 5.0 cm.
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