Physicsmedium · Past Paper
Which of the following media has the highest speed of sound?
AWater at 20C
BAir at 20C
CIron at 20C
DOxygen at 20C
✓ Correct Answer: C — Iron at 20C
Iron is a solid with high elasticity, giving it a much higher speed of sound (approx. 5000 m/s) than liquids or gases.
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