A) 30
B) 42
C) 51
D) 67
Correct Answer: D
Solution :
Permeability number, \[P=\frac{Vh}{pAt}\] \[V\text{ }=\text{ }2000\text{ }c.c.,t=1.5\text{ }min,\text{ }h\text{ }=\text{ }5.08\text{ }cm,\] \[d\text{ }=\text{ }5.08\text{ }cm,\]\[p=5\,\text{g/c}{{\text{m}}^{\text{2}}}\] \[P=\frac{2000\times 5.08}{5\times \frac{\pi }{4}{{(5.08)}^{2}}\times 1.5}=66.83=67\]You need to login to perform this action.
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