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Rain drops acquire spherical shape due to

  • A.Viscosity
  • B.Surface tension
  • C.Friction
  • D.Elasticity

Answer: B

Raindrops are spherical because of surface tension.

Molecules at the surface are pulled inwards by their neighbours, so the drop contracts until its surface area is as small as possible for the volume it contains - and for a fixed volume the sphere is that shape. Large falling drops are flattened by air resistance.

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