Which statement correctly distinguishes chromatic aberration from spherical aberration?
PHYSICS · Single correct · ISC · Physics · Optics · Dispersion of light
Problem
Which statement correctly distinguishes chromatic aberration from spherical aberration?
(a) Chromatic aberration is produced by different zones of the lens having different focal lengths, whereas spherical aberration is produced by dispersion in the lens.
(b) Chromatic aberration is produced by dispersion in a lens, whereas spherical aberration is produced by different zones of the lens having different focal lengths.
(c) Chromatic aberration can be removed by using a parabolic mirror, while spherical aberration is removed by an achromatic doublet.
(d) Chromatic aberration causes all colours to focus at one point, while spherical aberration makes different colours focus at different points.