Fluid MechanicsEasy
Question
The volume of an air bubble becomes three times as it rises from the bottom of a lake to its surface. Assuming atmospheric pressure to be 75 cm of Hg and the density of water to be 1/10 of the density of mercury, the depth of the lake is :-
Options
A.5 m
B.10 m
C.15 m
D.20 m
Solution
WBCOB = - Area of triangle BCO = - 
WAODA = + Area of triangle AOD = +
WAODA = + Area of triangle AOD = +
Create a free account to view solution
View Solution FreeMore Fluid Mechanics Questions
A crown made of gold and copper weights 210 g in air and 198 g in water. The weight of gold in crown is : -[Given : Dens...A small sphere of radius 'r' falls from rest in a viscous liquid. As a result, heat is produced due to viscous f...An aeroplane of mass 3 × 104 kg and total wing area of 120 m2 is in a level flight at some height. The difference i...A cylinder is filled with non viscous liquid of density d to a height h0 and a hole is made at a height h1 from the bott...A U-tube is partially filled with water. Oil which does not mix with water is next poured into one side, until water ris...