A dentist uses a curved mirror to view the back side of teeth in the upper jaw. Suppose she wants an upright image with a magnification of 1.5 when the mirror is 1.2 cm from a tooth. Should she use a convex or a concave mirror? What focal length should it have?
She should use a Concave mirror with focal length = 3.6 cm
We need to find out whether the dentist should use convex or concave mirror and calculate the focal length of the mirror.
Using Mirror Formula,
f is positive which means the mirror is Concave towards the object.
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