question_answer

The number of atoms contained in a fee unit cell of a monoatomic substance is

A) 1                                             

B)        2                             

C)        4        

D)        6

Correct Answer: C

Solution :

                                Effective number of atoms in FCC \[=8\times \frac{1}{8}+6\times \frac{1}{2}\] \[=1+3=4\]