Answer
orthorombic unit cell represents
$a\ne b\ne c$ and $\alpha = \beta =\gamma =90^{\circ}$
To represent the point $(0,\frac{1}{2},1)$ and $(\frac{1}{3},\frac{1}{4},\frac{1}{4})$
Work Step by Step
orthorombic unit cell represents
$a\ne b\ne c$ and $\alpha = \beta =\gamma =90^{\circ}$
To represent the point $(0,\frac{1}{2},1)$ and $(\frac{1}{3},\frac{1}{4},\frac{1}{4})$