Question

a u tube is made up of different are of crrosection then how to apply pressure equation

Answer 1

So, clearly, adding 13.6 'cm' of water is just equivalent to adding a 'cm' of mercury, which will increase the mercury level in the other arm by 0.5 cm.

So answer should be 0.5 cm.

PS: Centimetre is not an unit of measuring liquids. I have used it to show that the calculation can be done so fast and accurately.

Answer 2

Think simply..look,in case of u-tube,if the cross-section area will change then the density must be changed,and if you got the density anyhow then the ... procedure is same as it is.[density=mass÷(area×hight)]...ok