A) \[88.1\times {{10}^{3}}Hz\]
B) \[87.1\times {{10}^{3}}Hz\]
C) \[92.1\times {{10}^{3}}Hz~~~\]
D) \[89.1\times {{10}^{3}}Hz\]
Correct Answer: C
Solution :
Frequency of reflected sound heard by the bat \[v=v\left[ \frac{v-({{v}_{0}})}{v-{{v}_{s}}} \right]\] \[=v\left[ \frac{v-{{v}_{0}}}{v-{{v}_{s}}} \right]=v\left[ \frac{v+{{v}_{B}}}{v-{{v}_{b}}} \right]\] \[=v\left[ \frac{330+4}{330-4} \right]90\times {{10}^{3}}\] \[=92.1\times {{10}^{3}}Hz\]You need to login to perform this action.
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