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Non-dimensional number generally involved in case of heat transfer from horizontal cylinder by natural convection is

Answer: Option E

Atif said:

In case of free or natural convection the dimensionless numbers comes under consideration are Nusselt number Grashofs number and Prandtl number and in case of free convection nusselt number is a function of grashofs number and prandlts number while reynolds number play a same role in forced convection as grashofs number play in free convection