focal length of a biconvex lens made of glass of equal radii

Last updated: 6/14/2023

focal length of a biconvex lens made of glass of equal radii is f If the lens is dipped in he water then the focal length becomes 3 4 Take refractive index of glass and water as and respectively 2 3 Options 1 2 3 2f 4f 5 3 f 7 4 f