A dentist obtains a linear magnification of..

Question 1 Report

A dentist obtains a linear magnification of 4 of a hole in a tooth by placing a concave mirror at a distance, of 2.0cm from the tooth. The radius of Curvature of the mirror is

5.3cm

3.2cm

2.7cm

1.6cm

Answer Details

v = 4u, if u = 2cm, v = 8cm

F = $\frac{u v}{u + v}$

= $\frac{2 \times 8}{2 + 8}$

= 1.6cm

r = 2F

= 2 x 1.6

= 3.2cm

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A dentist obtains a linear magnification of 4 of a hole in a tooth by placing a concave mirror at a distance, of 2.0cm from the tooth. The radius of Curvatu...