What is the speed of sound in air at 20°C?
A300 m/s
B1500 m/s
C343 m/s
D50 m/s
Explanation
The speed of sound in dry air at 20°C is approximately 343 meters per second (approx. 1,235 km/h).
Exam Relevance
- Topic: Physics, Biology, Chemistry & Astronomy
- Subtopic: Human Anatomy, Earth Science, Solar System & Basic Principles

No Comments