A) 80 vibrations/sec
B) 90 vibrations/sec
C) 100 vibrations/sec
D) 120 vibrations/sec
Correct Answer: C
Solution :
\[n'=n\,\left( \frac{v}{v-{{v}_{s}}} \right)=90\,\left( \frac{v}{v-\frac{v}{10}} \right)\] = \[100\frac{Vibration}{\sec }\]You need to login to perform this action.
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