Basic Maths and Units and DimensionsHard
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 FreeTopic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions
More Basic Maths and Units and Dimensions Questions
An ideal gas is expanding such that PT2 = constant. The coefficient of volume expansion of the gas is:...The coefficient of linear expansion of metal body in one direction is α1 and that in every direction perpendicular ...A infinitely long line charge having a uniform charge per unit length λ lies a distance d from point O. Determine t...There are two point charges q1 and q2 lying on a circle of unit radius. Electric field intensity at the center of circle...Three identical rods, each of length l, are joined to form a rigid equilateral triangle. Its radius of gyration about an...