The focal length of the objective of a compound microscope is f0 and its distance from the eyepiece is L. The object is placed at a distance u from the objective. For proper working of the instrument. The focal length of the objective of a compound microscope is f0 and its distance from the eyepiece is L. The object is placed at a distance u from the objective. For proper working of the instrument. November 15, 2020 Category: Cengage NEET by C.P Singh , Chapter 19 - Optical Instruments , Part 2 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related