A) 1.11\[f\]
B) 1.22 \[f\]
C) \[f\]
D) 1.27 \[f\]
Correct Answer: B
Solution :
Source and observer both are moving. So, apparent frequency \[n=n\left[ \frac{v+{{v}_{o}}}{v-{{v}_{s}}} \right]\] where, \[{{v}_{o}}=\]speed of observer \[{{v}_{s}}=\] speed of source \[f=f\left[ \frac{v+v/10}{v-v/10} \right]\] \[v=\] speed of sound \[f=f\frac{11}{9}\] \[=1.22\,f\]You need to login to perform this action.
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