A) 4 : 3
B) 8 : 7
C) 8 : 9
D) 3 : 4
Correct Answer: C
Solution :
\[v\propto \frac{1}{\mu }\Rightarrow \]\[\frac{{{v}_{1}}}{{{v}_{2}}}=\frac{{{\mu }_{2}}}{{{\mu }_{1}}}\Rightarrow \frac{{{v}_{g}}}{{{v}_{w}}}=\frac{{{\mu }_{w}}}{{{\mu }_{g}}}=\frac{4/3}{3/2}=\frac{8}{9}\]You need to login to perform this action.
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