I f the Nusselt number ( Nu ) for heat transfer in a pipe varies with Reynolds number (Re ) asthen for constant average velocity in the pipe, the heat transfer coefficient varies withthe pipe diameter D asa)D-1.8b)D-0.2c)D0.2d)D1.8Correct answer is option 'B'. Can you explain this answer?

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I f the Nusselt number ( Nu ) for heat transfer in a pipe varies with Reynolds number (Re ) as

then for constant average velocity in the pipe, the heat transfer coefficient varies with
the pipe diameter D as

a)
D^-1.8
b)
D^-0.2
c)
D^0.2
d)
D^1.8

Correct answer is option 'B'. Can you explain this answer?

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I f the Nusselt number ( Nu ) for heat transfer in a pipe varies with Reynolds number (Re ) asthen for constant average velocity in the pipe, the heat transfer coefficient varies withthe pipe diameter D asa)D-1.8b)D-0.2c)D0.2d)D1.8Correct answer is option 'B'. Can you explain this answer?

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