Question

question 4
4/10
what is the main difference between tem and sem?
tem is used for surface visualization, sem for internal structures
tem is smaller than sem
tem is for internal structures, sem for 3d surfaces
tem uses light. sem uses electrons

Explanation:

TEM (Transmission Electron Microscope) is used to visualize internal structures by passing electrons through a thin - sectioned sample. SEM (Scanning Electron Microscope) creates images of 3D surface features by scanning the sample with a focused electron beam.

Answer:

TEM is for internal structures, SEM for 3D surfaces