A) 18/19
B) 1/2
C) 2
D) 19/18
Correct Answer: D
Solution :
By using \[n'=n\,\,\left( \frac{v}{v-{{v}_{S}}} \right)\] Þ\[{{f}_{1}}=n\,\left( \frac{v}{v-{{v}_{S}}} \right)\]\[=n\,\left( \frac{340}{340-34} \right)=\frac{340}{306}n\] and \[{{f}_{2}}=n\,\left( \frac{340}{340-17} \right)=n\,\left( \frac{340}{323} \right)\]\[\Rightarrow \]\[\frac{{{f}_{1}}}{{{f}_{2}}}=\frac{323}{306}=\frac{19}{18}\]You need to login to perform this action.
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