Q. The minimum distance between the object and its real image for concave mirror is
A) $f$
B) 2$f$
C) 4$f$
D) Zero
Explanation
(d) When object is kept at centre of curvature. It’s real image is also formed at centre of curvature
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.