Question

5. A dentist has a small mirror of focal length 18 mm .He views the cavity in the tooth of a

patient by holding the mirror at a distance of 9 mm from the cavity .Then the magnification

of the mirror is....​

Answer 1

Answer:

v=16/3

Explanation:

If it is convex mirror given

F=16mm

U=-8

V=?

1/f=1/u+1/v

1/16=-1/8+1/v

1/v=1/8+1/16

1/v=3/16

V=16/3