An equiconvex lens of refractive index 1 5 and focal length

Last updated: 6/13/2023

An equiconvex lens of refractive index 1 5 and focal length f is held normally to the path of a parallel beam of light The lens is tilted through a small angle Then A the new focal length is f sec B the image is displaced by fo from its initial position C the focal length remains unchanged D the image is not displaced at all