Q868
Materials for rain proof coats and tents owe their water proof properties to
A.
Surface tension
AnswerB.
Viscosity
C.
Specific gravity
D.
Elasticity
Answer: Option A
Solution
Answer: Option A
Solution:
Materials for rain proof coats and tents owe their water proof properties to Surface Tension. The surface of a liquid behaves like an elastic membrane and therefore, has a tendency to contract. This property of liquid is called Surface Tension.