LM, TEM, SEM are microscopes used to study small objects
particularly Cells.
Light Microscope or LM, also known as Optical microscope,
has the maximum magnification of x1500,
this means that in using light microscope the size of the object is magnified 1500
times.
Transmission Electron Microscope or TEM has a maximum magnification
of x500000 and produces a 2D image
of the sample.
Scanning Electron Microscope or SEM has a maximum magnification
of x100000 and produces a 3D image of
the sample.