In which of the following media does sound travel the fastest?
AGases
BSolids
CVacuum
DLiquids
Answer & Solution
Correct answer: B. Solids
1. Sound needs a medium and travels by particle vibration.
2. Closely packed particles transmit vibrations faster.
3. Solids have the most tightly packed particles, so sound travels fastest in solids.
_Source: RRB Group D CEN-02/2018 PYQ, Q.32._
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