Timeline for What do troughs represent in a sound wave?
Current License: CC BY-SA 4.0
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| when toggle format | what | by | license | comment | |
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| Jul 15, 2020 at 10:04 | comment | added | jojeck♦ | I will plug one more thing which is mildly interesting. In the case of air, the acoustic pressure is a fluctuation around atmospheric pressure. For standard atmospheric pressure of 1013 hPa the maximum achievable SPL for a symmetric wave is 194 dB SPL. This corresponds to pressure swing from a vacuum (0 Pa) to twice the atmospheric pressure (202600 Pa). | |
| Jul 12, 2020 at 3:46 | vote | accept | Devashish Jaiswal | ||
| Jul 11, 2020 at 17:08 | comment | added | Hilmar | Yes. The air alternates between compression and rarefaction. In the compressed area, the pressure is higher and the rarefaction area, the pressure is lower. This is accompanied by air movement: the air molecules move from higher to lower pressure. The particle velocity is largest right between the compressed and rarefactions areas and it's zero right in the center of the rarefactions and compressed areas | |
| Jul 11, 2020 at 12:09 | comment | added | Devashish Jaiswal | Do you mean rarefactions? | |
| Jul 11, 2020 at 12:05 | history | answered | Hilmar | CC BY-SA 4.0 |