Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

F-number

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search

F-number

(Science: radiobiology) in optics, denotes the ratio of the equivalent focal length of an objective lens to the diameter of its entrance pupil.