Two identical glass equi-convex lenses of focal length each are kept in contact. The space between the two lenses is filled with water . The focal length of the combination is
(a) (b)
(c) (d)
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology