00:01
Here in the question, if m is the mass of water that rises in the capillary tube of radius r, then we have to find mass of water which will rise in a capillary tube of radius 2r.
00:14
So, as we know that, capillary rise of a liquid is associated with the phenomena of surface tension, the tendency of a liquid surface to shrink into the minimum possible surface, area is called surface tension.
00:32
Adhase force of the was is responsible for the capillary rise.
00:38
The height of the capillary varies inversely with the radius of tube.
00:43
So we use the formula.
00:45
We are going to use the formula which is row is equals to m divided by v where the row is density, m is marr and v is volume.
00:58
And also we use h is inversely proportional to r.
01:04
Here h is height and r is radial.
01:07
So we use this formula to solve the question.
01:11
So here, capillary rise is defined as the rise of liquid above zero pressure due to coercive forces of the valves of the tube.
01:21
Before dealing with this type of problem, we must note down the base.
01:24
Basic formula used to find the rise or fall of capillary.
01:29
So here, h is equal to 2t, cos theta, h is equal to 2t, cos theta, row, g, r.
01:43
Here, row is density of water...