The image of a crayon appears to be 20.9 cm behind the surface of a convex mirro
ID: 2059650 • Letter: T
Question
The image of a crayon appears to be 20.9 cm behind the surface of a convex mirror and is 3.49 cm tall. The mirror’s focal length is 56.8cm. The magnification of the image is .632 cm. The crayon is positioned 33.06 cm in front of the mirror. How tall is the actual crayon in units of (cm) and describe the image.1. virtual, inverted, larger
2. real, inverted, larger
3. real, inverted, smaller
4. real, upright, larger
5. None of these
6. real, upright, smaller
7. virtual, inverted, smaller
8. virtual, upright, larger
9. virtual, upright, smaller"
Explanation / Answer
magnification = (height of image)/(height of object)
Actual length of crayon = (height of image)/magnification = 3.49 / .632 = 5.52cm
Images formed on a convex mirror are always virtual, upright and smaller.
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