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Question 1:

Which microscopy technique provides high-resolution 3D images of the surface of a material?

A) Scanning electron microscopy (SEM)
B) Transmission electron microscopy (TEM)
C) Atomic force microscopy (AFM)
D) Confocal microscopy

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Explanation: The correct answer is C) Atomic force microscopy (AFM). AFM provides high-resolution 3D images of the surface of a material by scanning a sharp tip over the surface and measuring the forces between the tip and the material.

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Question 2:

Which microscopy technique uses a beam of electrons to visualize the internal structure of a material?

A) Scanning electron microscopy (SEM)
B) Transmission electron microscopy (TEM)
C) Atomic force microscopy (AFM)
D) Confocal microscopy

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Explanation: The correct answer is B) Transmission electron microscopy (TEM). TEM uses a beam of electrons to visualize the internal structure of a material, providing high-resolution images of thin sections and atomic-scale details.

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Question 3:

Which microscopy technique is used to study the distribution of elemental composition in a material?

A) Scanning electron microscopy (SEM)
B) Energy-dispersive X-ray spectroscopy (EDS)
C) Atomic force microscopy (AFM)
D) Confocal microscopy

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Explanation: The correct answer is B) Energy-dispersive X-ray spectroscopy (EDS). EDS, often used in combination with SEM, allows the study of the distribution of elemental composition in a material by detecting characteristic X-rays emitted by the material.

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Question 4:

Which microscopy technique provides high-resolution optical images and can be used to reconstruct 3D structures?

A) Scanning electron microscopy (SEM)
B) Transmission electron microscopy (TEM)
C) Confocal microscopy
D) Atomic force microscopy (AFM)

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Explanation: The correct answer is C) Confocal microscopy. Confocal microscopy provides high-resolution optical images and can be used to reconstruct 3D structures by selectively focusing on a specific depth within a sample using a pinhole to eliminate out-of-focus light.

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Question 5:

Which microscopy technique is used to visualize the magnetic domains and magnetic properties of a material?

A) Scanning electron microscopy (SEM)
B) Transmission electron microscopy (TEM)
C) Magnetic force microscopy (MFM)
D) Atomic force microscopy (AFM)

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Explanation: The correct answer is C) Magnetic force microscopy (MFM). MFM is used to visualize the magnetic domains and magnetic properties of a material by measuring the magnetic forces between a magnetized probe and the sample surface.