MHT CET · Physics · Mechanical Properties of Fluids
A molecule of water on the surface
- A Downward resultant unbalanced adhesive force
- B Upward resultant unbalanced cohesive force
- C Downward resultant unbalanced cohesive force
- D Upward resultant unbalanced adhesive force
Answer & Solution
Correct Answer
(C) Downward resultant unbalanced cohesive force
Step-by-step Solution
Detailed explanation
A molecule on the surface experiences a net force (Cohesive force) in downward direction due to net number of molecules pulling it in the downward direction (molecule A as shown in figure underneath).
In contrast, a molecule well inside is equally pulled in all directions by molecules around at (molecule B as shown in figure)
In contrast, a molecule well inside is equally pulled in all directions by molecules around at (molecule B as shown in figure)
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