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A dentist’s mirror is placed 3.4 cm from a tooth. The enlarged image is located 5.7...

A dentist’s mirror is placed 3.4 cm from a tooth. The enlarged image is located 5.7 cm behind the mirror. (a) What kind of mirror (plane, concave, or convex) is being used? (b) Determine the focal length of the mirror. (c) What is the magnification? (d) How is the image oriented relative to the object?

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Answer #1

(a)

As focal length is negative the mirror is convex.

(b)

f = -8.426 cm

(c)

(d)

Image is upright and in the same orientation as the object.

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