In a plano-convex lens radius of curvature of the lens is 10 cm. if the plane side polished, then the magnitude of the focal length of the mirror so formed will be (refractive index =1.5) (2x) cm . Find value of x.

In a plano-convex lens radius of curvature of the lens is 10 cm. if th

1.	In a plano-convex lens radius of curvature of the lens is 10 cm. if the plane side polished, then the magnitude of the focal length of the mirror so formed will be (refractive index =1.5) (2x) cm . Find value of x.
Answer» ANSWER :5