Objective of a compound microscope should have small focal length. Why ?

A : The objective and the eye-piece of a compound microscope should have short focal lengths. R : Magnifying power of a compound microscope is inversely proportional to the focal lengths of both the lenses.

d) Why must both the objective and the eyepiece of a compound microscope have short focal lengths ?

Why must both the objective and the eyepiece of a compound microscope have short focal lengths?

Answer the following questions: (d) Why must both the objective and the eyepiece of a compound microscope have short focal lengths?

Answer the following questions: Why must both the objective and the eyepiece of a compound microscope have short focal lengths?

Answer the following questions: (d) Why must both the objective and the eyepiece of a compound microscope have short focal lengths?

Draw the labelled ray diagram for the formation of image by a compound microscope. Derive the expression for the total magnification of a compound microscope. Explain why both the objective and the eyepiece of a compound microscope must have short focal lengths.