Q. A point object is placed at a distance of 30 cm from a convex mirror of a focal length 30 cm. The image will form at
A) Infinity
B) Pole
C) 15 cm behind the mirror
D) No image will be formed
Explanation
(c) $\frac{1}{- 30} + \frac{1}{v} = \frac{1}{30}$
Or $\frac{1}{v} = \frac{2}{30} = \frac{1}{15}$
Or $\ v = 15\ cm$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.