Physics
Fluid-Mechanics
Easy
Question
Viscous force is somewhat like friction as it opposes, the motion and is non-conservative but not exactly so, because
- it is velocity dependent while friction is not
- it is velocity independent while friction is
- it is temperature dependent while friction is not
- it is independent of area is like surface tension while friction is dependent
The correct answers are: it is velocity dependent while friction is not, it is temperature dependent while friction is not
Sol: Viscous force is somewhat like a frictional force but not exactly the same because it differs from it due to the two main following statements:
i). Viscous force is velocity dependent while frictional force is not.
ii). Viscous force is temperature dependent while frictional force is not.
So, options (1)and (3) are correct.
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