A standard biological microscope is required to have amagnification of 200.

Question

1)When paired with a 10 eyepiece, what power objective isneeded to get this magnification? Assume that the length of thetube of a standard biological microscope is 15 .

2) What is the focal length of the objective?

Answer 1

1. 20.0

Answer 2

1- M_o=200x/10x=20

Answer 3

85