JEE Main & Advanced
Physics
Ray Optics
Question Bank
Mock Test - Geometrical Optics
question_answer
An object 2.4 m in front of a lens forms a sharp image on a film 12 cm behind the lens. A glass plate 1 cm thick, of refractive index 1.50, is interposed between lens and film with its plane faces parallel to film. At what distance (in m) from lens should object shifted to be in sharp focus on film?