In a sphere of influence,the liquid molecule at its centre is

  • A
    attracted by other molecules in the sphere of influence.
  • B
    repelled by other molecules lying outside the sphere of influence.
  • C
    attracted by other molecules lying outside the sphere of influence.
  • D
    repelled by other molecules in the sphere of influence.

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Cohesive force is experienced between

Surface tension is due to

$A$ water drop takes the shape of a sphere in oil, while an oil drop spreads in water, because ($A.F.$ = adhesive force, $C.F.$ = cohesive force)

If for a liquid in a glass vessel,the force of cohesion $(F_C)$ is twice the force of adhesion $(F_A)$,then which of the following statements are correct?
$(A)$ The meniscus will be convex.
$(B)$ The liquid will wet the glass.
$(C)$ The angle of contact will be obtuse.
$(D)$ There will be capillary descent in a glass capillary dipped in the liquid.
Correct option$(s)$ is/are:

The spiders and insects move and run about on the surface of water without sinking because

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