Homework Statement
The 10-turn loop of wire shown in the figure lies in a horizontal plane, parallel to a uniform horizontal magnetic field, and carries a 2.0A current. The loop is free to rotate about a nonmagnetic axle through the center. A 50g mass hangs from one edge of the loop...
that would make the focal distances 0.5cm and 1.25 cm for the objective and eyepiece lenses respectively? Using those foci I still do not get the correct answer (0.51 cm).
Homework Statement
A microscope with a tube length of 200 mm achieves a total magnification of 800\times with a 40 \times objective and a 20\times eyepiece. The microscope is focused for viewing with a relaxed eye.
How far is the sample from the objective lens?
Homework Equations...