| British Association for the Advancement of Science - 1847 - عدد الصفحات: 606
...reflected sound. If A is the ratio of the density of the second medium to that of the first, and В the ratio of the cotangent of the angle of refraction to the cotangent of the angle of incidence, then the intensity of the reflected sound is to the intensity of the incident as A — 1$ to AtB. In this... | |
| British Association for the Advancement of Science - 1847 - عدد الصفحات: 662
...reflected sound. If A is the ratio of the density of the second medium to that of the first, and В the ratio of the cotangent of the angle of refraction to the cotangent of the angle of incidence, then the intensity of the reflected sound is to the intensity of the incident as A — В to AtB- In this... | |
| George Green - 1871 - عدد الصفحات: 358
...belonging to the problem is a quantity of the same order as \ = ,---.. inch, 50,000 and the unit of time that which would be employed by light itself in passing...fluids the intensity of the reflected vibration _ A—B the intensity of the incident vibration A + B ' If now we apply this to the reflexion of sound... | |
| George Green - 1871 - عدد الصفحات: 372
...belonging to the problem is a quantity of the same order as \ = =777:777; inch, and the unit of time that which would be employed by light itself in passing...all fluids the intensity of the reflected vibration _A—B the intensity of the incident vibration A + B ' If now we apply this to the reflexion of sound... | |
| George Green - 1871 - عدد الصفحات: 353
...the unit of time that which would be employed by light itself in passing over this small space. Yery often too, when sound is reflected, these suppositions...all fluids the intensity of the reflected vibration — A —B the intensity of the incident vibration A + B ' If now we apply this to the reflexion of... | |
| George Gabriel Stokes - 1880 - عدد الصفحات: 341
...of the reflected sound. If A is the ratio of the density of the second medium to that of the first, and B the ratio of the cotangent of the angle of refraction to the cotangent of the angle of incidence, then the intensity of the reflected sound is to the intensity of the incident as A — B to A+B. In this... | |
| George Green - 1903 - عدد الصفحات: 376
...and the unit of time that which would be employed by light itself in passing over this small apace. Very often too, when sound is reflected, these suppositions...intensity of the incident vibration ~ A + B ' If now we apply this to the reflexion of sound at the surface of still water, we have A > 800, and the maximum... | |
| George Green - 1903 - عدد الصفحات: 356
...this small space. Very often too, when sound is reflected, these suppositions will lead to seusibly correct results. On this last account, the- problem...all fluids the intensity of the reflected vibration _A—R the intensity of the incident vibration A + B ' If now we apply this to the reflexion of sound... | |
| British Association for the Advancement of Science. Meeting - 1847 - عدد الصفحات: 718
...of the reflected sound. If A is the ratio of the density of the second medium to that of the first, and B the ratio of the cotangent of the angle of refraction to the cotangent of the angle of incidence, then the intensity of the reflected sound is to the intensity of the incident as A — B to A + B. In this... | |
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