Q 29. Consider two infinitely long thin concentric tubes of circular cross section as
shown in the figure. If 
are the diameters of the inner and outer tubes
respectively, then the view factor 
is give by
Answer: (D)
Explanation:
Q 29. Consider two infinitely long thin concentric tubes of circular cross section as
shown in the figure. If are the diameters of the inner and outer tubes
respectively, then the view factor is give by
Answer: (D)
Explanation:
