- #1

dvolpe

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## Homework Statement

A microscope has an eyepiece that gives an angular magnification of 5.25 cm for a final image at infinity and an objective lens of focal length 1.45 cm. The tube length is 16.1 cm.

a - What is the transverse magnification due to the objective lens alone?

b - what is the angular magnification due to the microscope?

c - how far from the objective should the object be placed?

## Homework Equations

M transverse = -I/f obj.

M eyepiece = N/f eyepiece

d of image = tube length - f eyepiece

## The Attempt at a Solution

I correctly got -11.5 for a and -60.5 for b. I am having trouble with c!

I used d image = 16.7 - 25/5.25 = 11.94

then (1/d image) + (1/d object) = 1/f obj

1/11.94 + 1/d obj = 1/1.45

I get d obj = 1.65 THIS IS WRONG - answer is 1.58 Please help.