The rate of heat transfer from a vertical plate by natural convection depends up

Question

The rate of heat transfer from a vertical plate by natural convection depends upon the temperature differences (ΔT) between wall and outside bulk. The proportionality is given as

Options:

A . (ΔT)1/4

B . (ΔT)1/2

C . (ΔT)5/4

D . (ΔT)3/4

Answer: Option D

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