Quiz  /  Surface tension Gate & PSU MCQ Questions With Answers

  • 1. 
    The linear momentum depends upon

  • velocity
  • speed
  • areal velocity
  • none

  • 2. 
    Method use to determine surface tension

  • Dunouy ring method
  • Capillary method
  • Cone and plate
  • Bubble pressure

  • 3. 
    The molecules existing at One of the following experience unbalanced forces

  • At the bottom and projecting to the glass bottom
  • At the walls and projecting to the glass
  • In the bulk and projecting inside
  • On the surface and projecting outwards

  • 4. 
    The rise of liquid in the capillary tube does not depend on:

  • Atmospheric pressure
  • Density of the liquid
  • Radius of the capillary
  • Temperature

  • 5. 
    Tweens and spans

  • Decrease surface tension
  • Increase surface tension
  • Neutralize
  • None

  • 6. 
    Which one of the following is an example of capillary action

  • Absorption of ink
  • Floating of wood
  • Ploughing of field
  • Rise of oil into the wick

  • 7. 
    Force depends on

  • mass
  • speed
  • length
  • angle

  • 8. 
    Molecular volume multiplied by the fourth root of surface tension of a liquid

  • Density
  • Viscosity
  • Parachor
  • Surface tension

  • 9. 
    Surface tension indicates

  • Adhesive forces
  • Cohesive forces
  • Both
  • None

  • 10. 
    When sugar is added to water,the surface tension changes as follows

  • Decreases
  • Increases
  • Not affected
  • Zero

  • 11. 
    The force between two charges depends upon

  • distance between charges
  • wavelength
  • frequency
  • amplitude

  • 12. 
    The surface of water in contact with glass will in the capillary tube is

  • Concave
  • Convex
  • Either concave or convex
  • Plane

  • 13. 
    Surface tension depends upon

  • surface of the liquid surface
  • nature of the liquid
  • on the surrounding
  • shape of liquid

  • 14. 
    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

  • 15. 
    Rain drops are spherical in shape because of

  • Capillary
  • Surface tension
  • Downward motion
  • Acceleration due to gravity

  • 16. 
    Interfacial tension indicates

  • Adhesive forces
  • Cohesive forces
  • Capillary forces
  • None

  • 17. 
    Wave is

  • nothing
  • disturbance in any medium
  • SHM
  • created by time

  • 18. 
    Which is defined as force per unit length existing at the interface between two immiscible liquids

  • Surface tension
  • Interfacial tension
  • Capillary action
  • None
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