Question

Explain spherical and chromatic aberration.

Answer 1

Aberration= it may be defined as the deviation of actual image from of an ideal image
these are two type .
•monochromatic
•chromatic

spherical aberration . it is a.monochromatic
aberration this type of defect in the image due to which the paraxial and marginal rays from same point object on the axis do not converge at the same point is called spherical abberivation.


• chromatic aberration.

you know when we form an image from lenses and prism ,so fare we have assumed the incident light as monochromatic and when the white light fall on the prism then it depersed into seven color thus the chromatic ab
erration is defined as the inability to get the ray of Vario's constituent colors of light to a single point
[the process to removal of the effect is called achromatic. ]