A) 5 beats/s
B) 10 beats/s
C) 6 beats/s
D) 8 beats/s
Correct Answer: A
Solution :
[a] Frequency heard by observer directly coming from source\[=\frac{355-5}{355+5}\times 180=175\] \[Hz.\,{{f}_{2}}\to \] frequency heard by observer after reflection \[=\left[ \frac{355}{355-5}\times \right]\left[ \frac{355-5}{355} \right]\times 180=180\,\,Hz\] \[{{f}_{2}}-{{f}_{1}}=5\,Hz\]You need to login to perform this action.
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