Question

(a) A mirror forms a 4 times magnified image on the wall which is 40 cm from the mirror. Determine the
focal length of the mirror.
(b) Draw a well labelled ray diagram for the given case.

Answer 1

• Hence, if the object is held at a distance of 53.33 cm, a real image thrice in size is obtained. Also, a virtual image of thrice the size is obtained if the distance of the object is 26.67 cm.