Question

Which of the following will produce greater chromatic aberration?

• A. thick lens
• B. thin lens
• C. both produce equal chromatic aberration
• D. insufficient information

Answer 1

The correct option is A thick lens

A lens may be considered as made up of a number of prisms placed one above the other. In a thick lens, the angles of prisms are larger than those in a thin lens. Since, angular dispersion produced by a prism is directly proportional to the angle of prism, a thick lens suffers from greater chromatic aberration.