WorksheetsWater Surface Tension
Total questions: 10
Worksheet time: 11mins
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].
Surface tension of a liquid is (a) the area of the liquid surface
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
The force required to seperate two glass plates of area
10-2m2 with a film of water 0.05mm thickness between them is (surface tension of water is 70 x 10-3N/m)
25N
20N
14N
28N
8 mercury drops coalesce to form 1 mercury drop, the energy changes by a factor of
1
2
4
6
The force of attraction between the molecules of the same substance is called as
adhesive force
force of surface tension
cohesive force
electrostatic force
