Chapter 13.3, Problem 17R

To determine

The total magnification.

Explanation of Solution

Introduction:

Magnification is the increase in the size of the image produced by an optical instrument as compared to its original size.

In case of a microscope, firstly the image formed by the objective lens is taken as the object for the eyepiece lens and then the final image is produced by the eyepiece lens.

So, according to the given statement, image formed by the objective lens is 100 times the size of the object. And the image so formed is magnified 10 times by the eyepiece. So, the total magnification of a microscope is given by the product of the magnifications by objective and eyepiece lenses. Hence, the total magnification will be:

  $\begin{array}{l}=100\times 10\\ =1000\end{array}$

Total magnification is 1000.

Conclusion:

Hence, the total magnification is 1000.