Mechanical Engineering > GATE 2016 SET-2 > Radiation
Consider the radiation heat exchange inside an annulus between two very long concentric cylinders. The radius of the outer cylinder is Ro and that of the inner cylinder is Ri. The radiation view factor of the outer cylinder onto itself is
A
1 - √(Ri/Ro)
B
√(1 - Ri/Ro)
C
1 - (Ri/Ro)1/3
D
1 - Ri/Ro

Correct : d

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