Which of the following media has the slowest speed of sound?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Air
The speed of sound depends on the medium's density and elasticity:
- Air → ~343 m/s
- Ice-cold water → ~1450 m/s
- Glass → ~5000 m/s
- Steel → ~5000–6000 m/s
Air has the slowest speed of sound among these options.