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Mechanical Properties of Fluids — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsMechanical Properties of Fluids2 Marks
Question
What is the significance of:
  1. Wetting agents used by dyers.
  2. Water proofing agents?
✓

Answer

  1. They are added to decrease the angle of contact between the fabric and the dye so that the dye may penetrate well.
  2. They are used to increase the angle of contact between the fabric and water to prevent the water from penetrating the cloth.

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