Two identical glass 3 2 equiconvex lenses of focal length f

Last updated: 6/7/2023

Two identical glass 3 2 equiconvex lenses of focal length f each are kept in contact The space between the two lenses is filled with water Hw 4 3 The focal length of the combination is 1 Af 3 2 36 A 2 3 4 f