Speed of sound in water at 20 °C is___________?
Correct answer: B. 1474 m/s
- A. 1450 m/s
- B. 1474 m/s
- C. 1498 m/s
- D. 1500+ m/s
Explanation
The speed of sound in fresh water near 20 °C is approximately 1,480 m/s; many standard tables give about 1,474 to 1,482 m/s depending on the assumed water conditions. Thus 1,474 m/s is the intended closest listed value.
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