A dentist uses a mirror for examining a patients\' teeth. Design a mirror for ex

Question

A dentist uses a mirror for examining a patients' teeth. Design a mirror for examining patients' teeth. Design a mirror sutiable for this purpose, assuming that the image is to be three times the size of the object, erect, and that the mirror is not to be held nearer to the tooth thn 1.0cm.

a) what kind of mirror should you use: converging or diverging? concave or convex? explain?

b) how far from the mirror is the image located?

c) what is the focal lengh and radius of curvature of the mirror?

d) show the situation in a ray diagram.

Explanation / Answer

a) concave mirror/converging mirror (as convex always form diminished image)

b) v = 3u = 3cm

c) 1/f = 1/3 -1/1 => f = -1.5 cm. R = 3cm

d)   

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