Through an experiment, find out the focal length of the lens.

What changes the focal length of the eye lens?

The radius of curvature of a plano-convex lens is R. The refractive index of material of prism is n then find the focal length of the lens ?

Collect the information about he lenses available in an optical shop. Find out how the focal length of a lens may be determined by the given'power' of the lens.

Power of a lens is 4D, then the focal length of the lens will be_____

c) Magnifying power of a simple microscope is inversely proportional to the focal length of the lens. What then stops us from using a convex lens of smaller and smaller focal length and achieving greater and greater magnifying power ?

On what factors does the focal length of the lens depend ?

Find the minimum and maximum focal lengths of the eye lens.