A dentist uses a small hand-held mirror to examine the back of a patient’s teeth
PHYSICS · Multi-part · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
A dentist uses a small hand-held mirror to examine the back of a patient’s teeth. The mirror must provide an enlarged, erect image when it is held close to the tooth surface.
(i) Identify the kind of spherical mirror suitable for this purpose.
(ii) With the help of a labelled ray diagram, explain how the chosen mirror produces an enlarged, erect image when the object is placed very close to the mirror.
(iii) State two consequences that would arise if a mirror of the opposite curvature were used instead.