Question:medium

Assertion A: Fluid property do not impact the heat transfer coefficient of natural convection.
Reason R: Density difference occurring in fluid impact the buoyancy forces which governs natural convection.
In the light of the above statements, choose the most appropriate answer:

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Natural convection is all about the Grashof Number ($Gr$), which represents the ratio of buoyancy forces to viscous forces. Since buoyancy depends on density and expansion, fluid properties are absolutely critical!
Updated On: May 20, 2026
  • Both A and R are correct and R is the correct explanation of A
  • Both A and R are correct but R is NOT the correct explanation of A
  • A is correct but R is not correct
  • A is not correct but R is correct
Show Solution

The Correct Option is D

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