Question:
Back Scattered electrons are used in:
Back Scattered electrons are used in:
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Backscattered electrons are key to compositional contrast in SEM imaging, especially useful for distinguishing elements by atomic number.
Updated On: Jun 20, 2025
- Scanning electron microscope
- Optical microscope
- Transmission electron microscope
- X-ray diffraction analysis
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The Correct Option is A
Solution and Explanation
Backscattered electrons (BSE) are high-energy electrons reflected back after elastic collisions with atoms in the sample.
They are commonly used in Scanning Electron Microscopes (SEM) to produce compositional contrast in images.
Heavier elements backscatter more electrons, providing brighter regions in the SEM image for such areas.
This technique is not used in optical microscopes, TEMs, or X-ray diffraction analysis, which rely on entirely different principles.
They are commonly used in Scanning Electron Microscopes (SEM) to produce compositional contrast in images.
Heavier elements backscatter more electrons, providing brighter regions in the SEM image for such areas.
This technique is not used in optical microscopes, TEMs, or X-ray diffraction analysis, which rely on entirely different principles.
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