Question:
The Scanning Electron Microscopy (SEM) gives the __________ features of material.
The Scanning Electron Microscopy (SEM) gives the __________ features of material.
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To remember the difference: SEM looks at the Surface, while TEM goes Through the sample.
Updated On: May 26, 2026
- internal
- molecular level
- surface
- atomic level
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The Correct Option is C
Solution and Explanation
Concept:
Electron microscopes use electrons instead of light to achieve much higher magnification and depth of field.
Step 1: How SEM Works.
The Scanning Electron Microscope (SEM) scans a focused beam of high-energy electrons over a sample. These interact with atoms at or near the surface of the material to produce an image.
Step 2: Comparing SEM and TEM.
While Transmission Electron Microscopy (TEM) reveals internal structures, SEM is used to observe external topographical details.
Step 3: Conclusion on Imaging capability.
Since SEM relies on detecting electrons from the outer layer of the specimen, it is specifically used to observe surface features.
Step 1: How SEM Works.
The Scanning Electron Microscope (SEM) scans a focused beam of high-energy electrons over a sample. These interact with atoms at or near the surface of the material to produce an image.
Step 2: Comparing SEM and TEM.
While Transmission Electron Microscopy (TEM) reveals internal structures, SEM is used to observe external topographical details.
Step 3: Conclusion on Imaging capability.
Since SEM relies on detecting electrons from the outer layer of the specimen, it is specifically used to observe surface features.
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