Physics
NULL
Medium
Question
In the electron microscope, electric & magnetic fields are used as_______________?
A
Electromagnetic gun
B
Source of electromagnetic waves
C
Deflecting charged particle
D
Converging source of electrons
✓ Official correct answer
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A
Electromagnetic gun
No member explanations yet for this option.
B
Source of electromagnetic waves
No member explanations yet for this option.
C
Deflecting charged particle
No member explanations yet for this option.
D
Converging source of electrons
No member explanations yet for this option.
Explanation
In an electron microscope, electric and magnetic fields act as electromagnetic lenses, converging/focusing the electron beam much as glass lenses focus light.
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