sparshithareddy10b Asked: December 2022 Determine the focal length of the lens with refractive index is given 2 and radius of curvature of two surfacesrespectively 20cm and
sparshithareddy10b Asked: December 2022 determine the focal length of the lens with refractive index is given 2 and radius of curvature of two surfacesrespectively 20cm and 35cm