Contents

There are…….types of electron microscope.
a) one                                    
b) two    
c) three                                  
d) four

b

Electron Microscope


Transmission electron microscope is used to view of
a) external                                      
b) internal structure
c) general                                       
d) all of these

b

The magnification power of Transmission electron microscope is…….
a) 10000x                                            
b) 250000x
c) 25000x                                             
d) 100000x

b

Scanning electron microscope (SEM) is used to view of ….
a) external surface            
b) internal structure
c) general                                              
d) all of these

a

To use Scanning electron microscope (SEM), the surface object is coated with…..
a) plastic                                               
b) metal (gold)
c) non-metal                        
d) all of these

b