In face centred cubic unit cell, edge length is | Chemistry | SolveeIt | Solveeit

Today, August 24

Question

In face centred cubic unit cell, edge length is

A

$\frac{4}{\sqrt{3}}r$

B

$\frac{4}{\sqrt{2}}r$

C

$2r$

D

$\frac{\sqrt{3}}{2}r$

Answer

$\frac{4}{\sqrt{2}}r$

Explanation

Solution

In $FCC$ , $4 r =\sqrt{2} a$ $a=\frac{4 r}{\sqrt{2}}$