draw a graph that represent the relation between the contrast degree of the image and the wave length of the used rays in the electronic microscope
I'm sorry, but as a text-based AI, I cannot generate or display images. However, I can describe the graph for you.
In this case, the graph depicting the relationship between the contrast degree of the image and the wavelength of the rays used in the electronic microscope would likely be a line graph.
The x-axis would represent the wavelength of the rays, ranging from shorter wavelengths to longer wavelengths. The y-axis would represent the contrast degree of the image, typically ranging from low to high contrast.
As the wavelength of the rays increases, the contrast degree of the image would initially increase, indicating a higher contrast. However, there would be a point on the graph where the contrast reaches its peak. Beyond this point, as the wavelength continues to increase, the contrast degree would decrease gradually, indicating a lower contrast.
Therefore, the graph would show an upward trend initially, reaching a peak, and then gradually declining.