Question

State a condition that must be true in order for the mercury to be at the same levels in both limbs of the tube.

Answer 1

Answer:

Answer. When water is added to one side of the U tube, the rise in mercury level of the other side of the U tube will be depend on the density of water and mercury. i.e. When 13.6cm water is added to one arm of the U tube, only a height of 1cm will be the rise in mercury level in the other arm.