At an intersection of hospital hallways, a con- vex mirror is mounted high on a

Question

At an intersection of hospital hallways, a con- vex mirror is mounted high on a wall to help people avoid collisions. The mirror has a ra- dius of curvature of 0.434 m.

Locate the image of a patient from 10.6 m the mirror.

Answer in units of m.

Find the magnification.

Describe the image.
1. virtual, inverted, larger

2. real, upright, larger

3. virtual, upright, larger

4. real, inverted, smaller
5. virtual, inverted, smaller

6. real, upright, smaller

7. real, inverted, larger
8. None of these
9. virtual, upright, smaller

Explanation / Answer

f = -R/2
f = -0.434/2 m
f = - 0.217 m

We know,
1/f = 1/di + 1/do
-1/0.217 = 1/di + 1/10.6
di = - 0.212 m

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