Question

Concave mirror Object distance (in cm) Focal length (in cm)
1 10 15
2 20 10
3 30 20
(i) Out of the three, in which case will the mirror form the image which has the same size as the
object?
(ii) Which mirror is being used as a shaving mirror?
(iii) Draw the ray diagram for part (i).

Answer 1

Answer:

• ,1 is the correct option and answer
• concave mirror is used