A steel rod $100\, cm$ long is damped at into middle. The fundamental frequency of longitudinal vibrations of the rod are given to be $2.53\, kHz$. What is the speed of sound in sound is steel ? (in $km/s$)
  • A$6.2$
  • B$5.06$
  • C$7.23$
  • D$7.45$
AIIMS 2018, Medium
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