![Influence of various intensities of 528 Hz sound-wave in production of testosterone in rat's brain and analysis of behavioral changes | SpringerLink Influence of various intensities of 528 Hz sound-wave in production of testosterone in rat's brain and analysis of behavioral changes | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs13258-018-0753-6/MediaObjects/13258_2018_753_Fig1_HTML.png)
Influence of various intensities of 528 Hz sound-wave in production of testosterone in rat's brain and analysis of behavioral changes | SpringerLink
1000Hz is used in acoustics as reference frequency for testing. What is special in it, why not 688.5Hz or 440Hz? - Quora
![A sound wave travels by a speed of 330 ms^-1 in air. If the wavelength of the wave is 110 cm , the frequency of the wave is . A sound wave travels by a speed of 330 ms^-1 in air. If the wavelength of the wave is 110 cm , the frequency of the wave is .](https://dwes9vv9u0550.cloudfront.net/images/6593633/398a30f6-02e9-42ea-ae6b-d4548c30dd32.jpg)
A sound wave travels by a speed of 330 ms^-1 in air. If the wavelength of the wave is 110 cm , the frequency of the wave is .
![SELLCOM Windtone Jalwa Horn Set Universal for Car/Motorbike| 12V, 105-118 dB, 400/500 Hz| High Loud Sound Air Siren| High + Low Tone| 560 GM| 9.5x10x9 CM| Pack of 2| Black : Amazon.in: Car & Motorbike SELLCOM Windtone Jalwa Horn Set Universal for Car/Motorbike| 12V, 105-118 dB, 400/500 Hz| High Loud Sound Air Siren| High + Low Tone| 560 GM| 9.5x10x9 CM| Pack of 2| Black : Amazon.in: Car & Motorbike](https://m.media-amazon.com/images/I/71T9SpzCJtL.jpg)