Question

Which of the following are true for electron microscopy?

a.

specimen should be thin and dry

b.

image is obtained on a phosphorescent screen

c.

electron beam must pass through evacuated chamber

d.

specimen should be thin and dry, image is obtained on a phosphorescent screen and electron beam must pass through evacuated chamber

Answer: (d).specimen should be thin and dry, image is obtained on a phosphorescent screen and electron beam must pass through evacuated chamber

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Q. Which of the following are true for electron microscopy?

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