Answer
$(2,1,1)$ is the point of the miller indice for the plane 1
$(0,2,0)$ is the point of the miller indice for the plane 2
Work Step by Step
The indices for the two planes is drawn in the sketch for plane 1
Intercept in x-axis at $\frac{1}{2}$, intercept in y axis at 1 and intercept in z axis at 1.
Take the reciprocal of the intercept point, then the miller indice of the plane is:
$(2,1,1)$ is the point of the miller indice for plane 1
The indices for the two planes is drawn in the sketch for plane 2
Plane is parallel to x and z axis
Intercept in x-axis at $\infty$, intercept in y axis at $\frac{1}{2}$ and intercept in z axis at $\infty$ .
Take the reciprocal of the intercept point, then the miller indice of the plane is:
$(0,2,0)$ is the point of the miller indice for plane 2
