Which lenses in electron microscope are used to control and focus a [DPMT 2004]
A) Convex lens
B) Concave lens
C) Electric lens
D) Magnetic lens
Answers
Answered by
0
Hey mate..
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Correct Answer: D) Magnetic lens
Reason:--
The device used is called a magnetic lens because it bends the beam of electrons the same way that a glass lens bends a beam of light.
A scanning electron microscope usually has more than one magnetic lens.
#racks
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Correct Answer: D) Magnetic lens
Reason:--
The device used is called a magnetic lens because it bends the beam of electrons the same way that a glass lens bends a beam of light.
A scanning electron microscope usually has more than one magnetic lens.
#racks
Answered by
3
Magnetic lens is answer
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