alleryAn obtuse angle of contact means the liquid:
ASpreads flat
BDoes not wet
CWets it fully
DSoaks right in
Answer & Solution
Correct answer: B. Does not wet
1. An obtuse angle means the liquid clings to itself strongly.
2. Making a liquid to solid surface then costs a lot of energy.
3. So the liquid does not wet the solid.
_Source: syllabus Physics Part II, Chapter 10, Mechanical Properties of Fluids._
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