A) same as that in Y
B) half of that in Y
C) twice of that in Y
D) 8 times of that in Y
Correct Answer: D
Solution :
\[P=\frac{1}{3}\frac{mn{{u}^{2}}}{V}\] \[\frac{{{P}_{X}}}{{{P}_{Y}}}=\frac{{{n}_{X}}{{u}_{X}}{{V}_{Y}}}{{{n}_{Y}}{{u}_{Y}}{{V}_{X}}}=\frac{({{N}_{0}}\text{/}1000)}{({{N}_{0}}\text{/}2000)}\times 2\times \frac{2}{1}=8\]
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