Size of image of an object by a mirror having a focal length of 20cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror?what is the nature of the image and the mirror?
Answers
Answered by
14
Answer:
Object is placed at 40 cm in front of convex mirror
Explanation:
Use the formula of magnification of mirror i.e (- v/u)
And mirror formula (1/v+1/u=1/f)
By this image distance will become +ve which means mirror is convex
Attachments:
Similar questions