A) 510 Hz
B) 500 Hz
C) 525 Hz
D) 550 Hz
Correct Answer: C
Solution :
Apparent frequency \[n'=n\frac{(u+{{v}_{w}})}{(u+{{v}_{w}}-{{v}_{s}}\,cos\,\,60{}^\circ )}\,\,=\,\,\frac{510(330+20)}{330+20-20\cos \,\,60{}^\circ }\]\[=\,\,510\times \frac{350}{340}=\,\,525\,Hz\]You need to login to perform this action.
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