A) 750 Hz
B) 857 Hz
C) 1143 Hz
D) 1333 Hz
Correct Answer: A
Solution :
By using \[\frac{{{n}_{\text{approaching}}}}{{{n}_{\text{receding}}}}=\frac{v+{{v}_{s}}}{v-{{v}_{s}}}\] Þ \[\frac{1000}{{{n}_{r}}}=\frac{350+50}{350-50}\] Þ \[{{n}_{r}}=750Hz.\]You need to login to perform this action.
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