Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the

existence of thermal boundary layer.

temperature gradient produced due to density difference

buoyancy of the bubbles produced at active nucleation site.

Fluid motion in the natural convection heat transfer between a solid s

1.	Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the
A.	existence of thermal boundary layer.
B.	temperature gradient produced due to density difference
C.	buoyancy of the bubbles produced at active nucleation site.
D.	none of these.
Answer» E.

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Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the

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