Wednesday

January 28, 2015

January 28, 2015

Posted by **katherine** on Friday, May 22, 2009 at 3:31am.

The answer is 460.

I tried finding the magnification for the eyepiece which was m=25/f=25/3.6=6.94.

For the objective lens I tried to solve for q by 1/20 + 1/q = 1/.3 and solved for magnification of objective lens to be m=-q/p.. but i didnt get the correct answer.. is the given value of 20cm=p? i think thats where i went wrong.

- Science -
**Writeacher**, Friday, May 22, 2009 at 8:32amAssistance needed.

Please type your__subject__in the**School Subject**box. Any other words are likely to delay responses from a teacher who knows that subject well.

- objective and eyepiece lens -
**bobpursley**, Friday, May 22, 2009 at 9:27amA resonable approximation for magnification of a microscope is

M= L/f0 * 25/fe

See:http://hyperphysics.phy-astr.gsu.edu/hbasees/geoopt/micros.html

With that approximation, I get

M= 20/.3*25/3.6=463 and it has to be rounded to two sig figures.

**Answer this Question**

**Related Questions**

biology - If a microscope has a 40× objective lens in place and a 15× eyepiece ...

Physics - A compound microscope has a barrel whose length is 17.4 cm and an ...

physics - A trucker sees the image of a car passing her truck in her diverging ...

physics - A telescope that has a 100 cm focal length objective and a 3.00 cm ...

Physics - A standard biological microscope is required to have amagnification of...

Physics - A telescope has a magnification of 20 and consists of two converging ...

Physics - The microscope has a converging lens (the eyepiece) with a focal ...

Science - How do you calculate the total magnification of a microscope, using ...

lenses, still stuck! - I need to calculate the magnification, m of an objective ...

physics, lenses - I need to calculate the magnification, m of an objective lens...