Two identical glass g 3 2 equi convex lenses of focal length

Last updated: 5/29/2023

Two identical glass g 3 2 equi convex lenses of focal length f each are kept in contact The space between the two lenses is filled with water w 4 3 The focal length of the combination is W NEET 2016 4f 3f a f 3 b f d 3 4 c