Fluid MechanicsHard
Question
To measure the atmospheric pressure, four different tubes of length 1m, 2m, 3m and 4m are used. If the height of the mercury column in the tubes is h1, h2, h3, h4 respectively in the four cases, then h1 : h2 : h3 : h4 is
Options
A.1 : 2 : 3 : 4
B.4 : 3 : 2 : 1
C.1 : 2 : 2 : 1
D.1 : 1 : 1 : 1
Solution
To measure the atmospheric pressure, same length of tubes containing mercury are required, no matter how many tubes are used.
(Since Patm = ρHg g h)
(Since Patm = ρHg g h)
Create a free account to view solution
View Solution FreeMore Fluid Mechanics Questions
How much force is required to produce an increase of 0.2% in the length of a brass wire of diameter 0.6 mm ? [Young̸...A spherical body of radius R consists of a fluid of constant density and is in equilibrium under itsown gravity. If P(r)...A small object of uniform density rolls up a curved surface with an initial velocity ′v′. It reaches upto a ...On dipping a capillary of length 20 cm. in a liquid, the liquid rises in it upto a height of 8 cm. If the whole arrangem...The density of ice is x gm/cc and that of water is y gm/cc. What is the change in volume in cc, when m gm of ice melts?...