Size of image of an object by a mirror having a focal length of `20 cm` is observed to be
Channel: Doubtnut
Date: 2020-07-26

Size of image of an object by a mirror having a focal length of `20 cm` is observed to be reduced to `1/3rd` of the size ? At what distance the object has been placed from the mirror ? What is the nature of the image and the mirror ?