Question

Rohit wants to have an erect image of an object using a converging mirror of focal length 40 cm.

1. Specify the range of distance where the object can be placed in front of the mirror. Justify.
2. Draw a ray diagram to show image formation in this case.
3. State one use of the mirror based on the above kind of image formation.

Answer 1

1. The object has to be placed at a distance between 0 - 40 cm. This is because image is virtual, erect and magnified when the object is placed between F and P.
2. 
   
3. Used as shaving mirror or used by dentists to get enlarged images of teeth.