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A dentists mirror is designed to magnify a tooth by a factor of +5 when the tooth is located 1.5cm in front of the mirror. What is the radius of curvature of the mirror? Is it concave or convex?
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Image size to object size is, 21 5(1.5 cm) 7.5 cm The image is upright then the value is negative. Using the lens equation, u V f 1.5 cm -7.5 cm -1.875 cm -1.88 cm Radius of curvature is, 2 cm (1.875 cm) - 3.75 cnm The mirror used is concave mirror

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