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Auger Spectroscopy MCQ Questions & Answers

Auger Spectroscopy MCQs : This section focuses on the "Auger Spectroscopy". These Multiple Choice Questions (MCQs) should be practiced to improve the Auger Spectroscopy skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

AES is limited when it comes to very high resolution studies.

A. True
B. False

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Question 2

AES is more sensitive than XPS because of which of the following factors?

A. Binding energies of electrons
B. Kinetic energies of electrons
C. Mass of electrons
D. Mass to charge ratio of electrons

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Question 3

Auger electron spectroscopy can be used for surface chemical analysis in a way similar to which of the following?

D. Ion spectroscopy

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Question 4

Auger electron spectroscopy involves the irradiation of the surface to be analysed with a beam of electrons of energy in the _________ range.

A. 1-2 KeV
B. 2-4 KeV
C. 4-8 KeV
D. 1-8 KeV

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Question 5

Electron ionization can produce which of the following?

A. ESCA electron
B. Auger electron
C. Ion
D. Photon

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Question 6

How is the specificity of Auger electron spectroscopy?

A. Very bad
B. Bad
C. Good
D. Very good

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Question 7

In Auger process, an electron drops to fill which of the following?

A. 1s hole
B. 1p hole
C. 2s hole
D. 2p hole

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Question 8

In Auger spectroscopy, beam currents are typically _____ in a beam of diameter 0.5mm.

A. 5-10 µA
B. 5-20 µA
C. 5-30 µA
D. 5-50 µA

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Question 9

In ESCA process, the photon ejects which of the following?

A. 1s electron
B. 1p electron
C. 2s electron
D. 2p electron

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Question 10

Qualitative chemical analysis is very often performed using which of the following?

D. Ion spectroscopy

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Question 11

The characterisation of auger spectroscopy can be achieved up to which of the following depths?

A. 1 nm
B. 2 nm
C. 4 nm
D. 8 nm

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Question 12

Which of the following denotes the sample destruction that occurs in Auger electron spectroscopy?

A. None in 95% of sample
B. None in 99% of sample
C. None in 100% of sample
D. Frequent

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Question 13

Which of the following is an Auger transition starting from a hole in 1s levels which would be filled up from the 2p level?

A. KLM transition
B. KLL transition
C. LMN transition
D. LLM transition

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Question 14

Which of the following is the detection limit of Auger Electron Spectroscopy?

A. 0.1% monolayer
B. 0.5% monolayer
C. 1% monolayer
D. 2% monolayer

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