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Q:

The hairs of the shaving brush stick together after coming out of the water, what is the reason for this?

  • 1
    Friction
  • 2
    Surface tension
  • 3
    Elasticity
  • 4
    Viscosity
  • Show Answer
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Answer : 2. "Surface tension"
Explanation :

When the brush is taken out of water, the hairs cling together due to surface tension. This happens because the free surface of water tries to acquire a minimum surface area. 

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