Q.1
Molecular volume multiplied by the fourth root of surface tension of a liquid
  • Density
  • Viscosity
  • Parachor
  • Surface tension
Q.2
Method use to determine surface tension
  • Dunouy ring method
  • Capillary method
  • Cone and plate
  • Bubble pressure
Q.3
Tweens and spans
  • Decrease surface tension
  • Increase surface tension
  • Neutralize
  • None
Q.4
Which is defined as force per unit length existing at the interface between two immiscible liquids
  • Surface tension
  • Interfacial tension
  • Capillary action
  • None
Q.5
When there are no external forces,the shape of liquid drop is determined by
  • Surface tension of liquid
  • The density of liquid
  • The viscosity of liquid
  • The temperature of air
Q.6
Rain drops are spherical in shape because of
  • Capillary
  • Surface tension
  • Downward motion
  • Acceleration due to gravity
Q.7
Surface tension indicates
  • Adhesive forces
  • Cohesive forces
  • Both
  • None
Q.8
Interfacial tension indicates
  • Adhesive forces
  • Cohesive forces
  • Capillary forces
  • None
Q.9
If a glass tube ofmm diameter is immersed in water, what will be the rise or fall in mm in capillary? (Take surface tension = 0.N/m, g =m/s2 , ρw =kgm-3 and angle of contact = 0)
  • 0.75
  • 1.5
  • 3
  • 6
0 h : 0 m : 1 s