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Mechanical Properties of Fluids — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsMechanical Properties of Fluids1 Mark
MCQ
Pressure is a scalar quantity because:
  • A
    it is the ratio of force to area and both force and area are vectors.
  • B
    It is the ratio of the magnitude of the force to area.
  • ✓
    It is the ratio of the component of the force normal to the area.
  • D
    It does not depend on the size of the area chosen.
✓

Answer

Correct option: C.
It is the ratio of the component of the force normal to the area.
What makes pressure a scalar quantity is the fact that it is the component of force along the direction of area that is taken into account while defining pressure. Thus the direction of quantities involved remain fixed and pressure becomes a scalar quantity.

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