Question

Body diagonal of a cube is 866 ppm. Its edge length would be

• A. 408 pm
• B. 1000 pm
• C. 500 pm
• D. 600 pm

Answer 1

The correct option is C

500 pm

Length of body diagonal $=\sqrt{3}a$
$\Rightarrow 866=\sqrt{3}a\Rightarrow a=\frac{866}{1.732}=500pm[\because \sqrt{3}=1.732]$