WorksheetsFluid Mechanics-3
Total questions: 10
Worksheet time: 50mins
The surface tension of liquid decreases with a rise in
viscosity of the liquid
temperature of the liquid
diameter of container
thickness of container
The rain drops are in spherical shape due to
viscosity
thrust on drop
surface tension
residual pressure
Dimensional formula of surface tension is
[MLT].
[MT-2].
[M0T-2].
[ML2T-2].
The surface tension of a liquid is T. The increase in its energy on increasing the area of its surface by amount A is
TA
T2A
T
T2A2
The surface tension of a soap solution is 0.03N/m.The work done to produce a soap bubble of radius 0.05m is
1.6 x 10-3 J
2.6 x 10-3 J
1.6 x 10-6 J
1.88 x 10-3 J
A square wire frame of size L is dipped in a liquid. On taking out, a ,embrane is formed. If the surface tension of liquid is T, force acting on the entire frame will be
2TL
4TL
8TL
10TL
8 mercury drops coalesce to form 1 mercury drop, the energy changes by a factor of
1
2
4
6
What is the property of a liquid due to which its free surface tries to have minimum surface area?
Viscosity
Buoyancy
Surface tension
Rigidity
Insect moves over surface of water because of
Elasticity
Surface tension
Friction
Viscosity
The water droplets are spherical in free fall due to
Gravity
Inter-molecular attraction
Surface tension
Viscosity
