A) 2
B) \[\frac{1}{2}\]
C) \[\frac{18}{19}\]
D) \[\frac{19}{18}\]
Correct Answer: D
Solution :
Perceived Frequency by observer in 1st case \[{{v}_{1}}=v\left( \frac{v}{v-{{v}_{5}}} \right)\] \[\therefore \] \[{{v}_{1}}=v\left( \frac{340}{340-34} \right)=\frac{340v}{306}\] Perceived Frequency by observer in II nd case \[{{v}_{2}}=v\left( \frac{340}{340-17} \right)=\frac{340\,v}{323}\] Therefore, \[\frac{{{v}_{1}}}{{{v}_{2}}}=\frac{340v}{306}\times \frac{323}{340\,v}\] \[=\frac{323}{340}=\frac{19}{18}\]You need to login to perform this action.
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