A) \[4:5\]
B) \[5:4\]
C) \[2:3\]
D) \[3:2\]
E) \[2:5\]
Correct Answer: B
Solution :
When an observer is moving towards the source apparent frequency \[n=n\times \left( \frac{{{v}_{1}}+{{v}_{o}}}{v} \right)\] Or \[n=n\times \left( \frac{v+v/4}{v} \right)\] Or \[n=n\times \frac{5}{4}\] Or \[\frac{n}{n}=\frac{5}{4}\]You need to login to perform this action.
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