The speed of sound is greater in hot air than it is in cold air. This is because the molecules of air are moving faster and the vibrations of the sound wave can therefore be transmitted faster.
This means that when sound travels from hot air to cold air or from cold air to hot air it will refract.
Answers & Comments
Answer:
A.40°C
Explanation:
The speed of sound is greater in hot air than it is in cold air. This is because the molecules of air are moving faster and the vibrations of the sound wave can therefore be transmitted faster.
This means that when sound travels from hot air to cold air or from cold air to hot air it will refract.