You construct a microscope with an objective of focal length 1.50 cm and an eyepiece of focal length 2.50 cm.You set the two lenses 20.0 cm apart.What is the overall magnification of your microscope for a person with a normal near point (25.0 cm)?
A)-110
B)-130
C)-160
D)-120
E)-85

Question

Quizplus · Accepted Answer

The overall magnification of a microscope is given by the formula: M = (L/fo) * (25/fe), where L is the distance between the lenses, fo is the focal length of the objective, and fe is the focal length of the eyepiece. Substituting the given values: M = (20/1.5) * (25/2.5) = -110.

You Construct a Microscope with an Objective of Focal Length