Figure shows a container of width H. A telescope is fitted at a height H above the base on its side wall such that it is focussed at the point A as shown. Now a liquid is poured slowly in the container. The refractive index of liquid is `mu = sqrt(2)`. Select the correct alternatives
A. When level of liquid column is h, the point of focus is at a distance `h(1-(1)/(sqrt(3)))` from A
B. When level of liquid is h, the point of focus is at `(h)/(sqrt(3))` from A
C. When level of liquid exceeds H, point of focus is always at `(H)/(2)` from A
D. When level of liquid exceeds H, point of focus is A
