Asked by Orla

The distance between the lenses of a microscope is 18 cm. The focal length of the eyepiece is 1.8 cm. If the microscope is to produce an angular magnification of -260 when used by a person with a normal near point (20 cm from the eye), what must the focal length of the objective be?

Answers

Answered by MU
Neill
Answered by Neil
He gave us this in lecture:

L = 0.18m
Fe = 0.018m
M = -260
N = 0.2m
Fo = ?

M = (-N/Fe)(L-Fe/Fo)

Subbed in and I ended up with 6.92x10^-3 m
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