1. The following is a drawing of a virus. What is its actual size?
Biology 107 Lab Sample Quiz
Table 1. Characteristics of the objective lenses on a light microscope.
*Use a wavelength of light of 565nm for your calculation
1. The following is a drawing of a virus. What is its actual size?
2. Would this virus be seen under a light microscope? Why?
Homework Answers
Since the virus has a spherical shape, it's size is determined by the actual diameter, which in this case is 40 nm
The magnification is equal to the image size divided by the actual size:
Therefore this virus can't be seen with an ordinary light microscope, because it's total magnification is only as big as 1000x as shown in the table
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