Q.
A convex lens is made of 3 layers of glass of 3 different materials as in the figure. A point object is placed on its axis. The number of images of the object are
A) 1
B) 2
C) 3
D) 4
Explanation
(a) A lens made of three different materials as shown has only one focal length. Thus, for a given object there is only on image.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.