Question

At a given place the barometer records 75cm of Hg. What will the height of water column in the barometer if mercury was replaced by water? [ density of Hg = 13600 kg / (m ^ 3) density of water= 1000kg/m^ 3 ] [3]​

Answer 1

Answer:

Explanation:

Given: The atmospheric pressure at one point is noted to be 70 cm of Hg.

70 cm= 0.70 m  

 

The denisty of mercury is 13.6 times the density of water.

dm = 13.6 dw

Atmospheric pressure P = h x d x g  

 

Let the height upto which the mercury is raised be hm and the density of mercury be dm.

Let the height upto which the water will be raised be hw and the density of water be dw.

 

hm x dm x g =hw x dw x g  

hm x dm = hw x dw