Question

A real image of a distant object is formed by a plano-convex lens on its principal axis. Spherical aberration

• A. Is absent
• B. Is smaller if the curved surface of the lens faces the object
• C. Is smaller if the plane surface of the lens faces the object
• D. Is the same whichever side of the lens faces the object

Answer 1

The correct option is B Is smaller if the curved surface of the lens faces the object

By making the curved surface of the lens facing towards object the spherical aberration is smaller due to converging nature of convex lens.