Define a Microscope.

Q. Define resolving power of a microscope?

Q. A microscope:

Q. Define magnifying power of a microscope in terms of visual angle.

Q. Define the magnifying power of a compound microscope when the final image is formed at infinity. Why must both the objective and the eyepiece of a compound microscope have short focal lengths? Explain.

Q. (a) Draw a ray diagram for the formation of image by a compound microscope.
(b) You are given the following three lenses. Which two lenses will you use as an eyepiece and as an objective to constuct a compound microscope?
$\begin{array}{ccc}\text{Lenses}& \text{Power (D)}& \text{Aperture(cm)}\\ {\text{L}}_1& 3& 8\\ {\text{L}}_2& 6& 1\\ {\text{L}}_3& 10& 1\end{array}$
(c) Define resolving power of a microscope and write one factor on which it depends.