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The Electron Beam Strikes the Specimen in an Area Where

Question 110

Multiple Choice

The electron beam strikes the specimen in an area where there is a high concentration of heavy metal atoms.What does the spot on the phosphorescent screen of the electron microscope just below this part of the specimen look like?


A) It is dark.
B) It is bright.
C) It is speckled.
D) It is invisible.
E) It is purple.

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