How can the spherical aberration produced by a lens be minimised ?

What is meant by : (1) Spherical aberration ? (2) Chromatic aberration ? (ü) How can spherical aberration be reduced/ minimized ? Suggest any one method.

Hybrid species can be produced by

Spherical aberration in a thin lens can be reduced by

How can the pitch of sound produced in a piano be changed ?

A convex lens is placed some where between an object and a screen which are separated by 48 cm. If the numerical value of magnification produced by the lens is 3, what is the focal length of lens?

What is the cause of spherical aberration in lenses? State a method to minimise the defect.

The graph shows how the magnification m produced by a thin lens varies with image distance v. What is the focal length of the lens used?

The graph shows how the magnification m produced by a thin lens varies with image distance v. What is the focal length of the lens used?

A convergent doublet of separated lens correct for spherical aberration, are separated by 2m and has an equivalent focal lenth of 10cm . Calculate the focal length of its component lenses.

The distance between an object and a divergent lens is m times the focal length of the lens. The linear magnification produced by the lens is