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Question 30991
JEE Physics · Hard

Fluid Mechanics: Viscosity Advanced MCQ

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Viscosity AdvancedHardQuestion 30991

Question

Blood viscosity is about 3–4 times higher than water. This high viscosity is mainly due to:
  1. A
    Blood salinity
  2. B
    Red blood cells and proteins in plasma
    Correct
  3. C
    Temperature of blood (37°C)
  4. D
    Dissolved oxygen

Correct answer

Red blood cells and proteins in plasma

Explanation

Red blood cells (about 45% by volume) and plasma proteins like fibrinogen significantly increase blood's apparent viscosity over water.

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