Find the focal length of the lens shown in Fig.

Find the focal length of the lens shown in the Fig..

Find the focal length of the lens shown in the Fig..

Find the focal length of the lens as shown in figure.

Find the focal length of the lens shown in the figure. The radii of curvature of both the surfaces are equal to R

Find the focal length fo the lens shown in the figure.

Calculate the focal length of the lens shown in the figure.

Define focal length of a lens

The dispersive power of the material of a lens is 0.04 and the focal length of the lens is 10cm . Find the difference in the focal length (in mm) of the lens for violet and red colour.