An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is Leave a Comment / Light MCQs / By Gkseries Q. An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is A. – 30 cm B. 30 cm C. – 15 cm D. +15 cm Answer: – 15 cm
