Question

The image of an object formed by a mirror is real, inverted and is of magnification -1. If the image is at the distance

of 30 cm from the mirror, where is the object placed? Find the position of the image if the object is now moved 20 cm

towards the mirror. What is the nature of the image obtained? Justify your answer with the help of ray diagram.

Answer 1

Explanation:

Objects are at the same distance from the mirror as their images , so if the image is 30 cm in front of the mirror , the object would be also 30 cm . If the object is moved 20 cm towards the mirror , the image will move 30-20=10 cm away from the mirror , hence 20 cm away from the mirror now . Nature would be laterally inverted , real etc .