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
A man of mass 80 kg is standing inside a lift moving upward with a uniform velocity of 4 m/s then the apparent weight of...If a piece of metal is heated to temperature θ and then allowed to cool in a room which is at temperature θ0 t...The change in volume V with respect to an increase in pressure P has been shown in the figure for a non-ideal gas at fou...The principal axis of a convex lens is along x axis. The coordinates of an object and image are (-20cm, 2cm) and (25cm, ...A ship A is moving Westwards with a speed of 10 km h-1 and a ship B 100 km South of A, is moving Northwards with a speed...