Fluid Mechanics Viscosity Question 365
Question: Soap helps in cleaning clothes, because[DPMT 1983, 2001]
Options:
A)Chemicals of soap change
B) It increases the surface tension of the solution
C) It absorbs the dirt
D) It lowers the surface tension of the solution
Show Answer
Answer:
Correct Answer: D
Solution:
Soap helps to lower the surface tension of solution, thus soap get stick to the dust particles and grease and these are removed by action of water.
BETA
