- #1

rmusial91

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## Homework Statement

To examine a particular blood sample in biology lab, a student uses a compound microscope set to have a magnification of -4530. The objective and eyepiece are both attached to a tube which is 18 cm in length and the eyepiece has a focal length of 2.62 cm. The near point of the person using the microscope is 24 and you can assume she can view the image produced with a fully relaxed eye.

a) What is the focal length of the objective?

b) What is the distance between the blood sample and the objective lens?

## Homework Equations

Mobjective = -di/do = - di/ fobjective

Meyepiece = N/feyepiece

Mtotal = Mobjective*Meyepiece

## The Attempt at a Solution

i tried using these equations...but they didnt work out for me.. unless I am using the wrong equation... i got them equation from compound microscope section of a book