| Society for the Diffusion of Useful Knowledge (Great Britain) - 1834
...important discovery of Willebrord Snell, that when a ray of light passes from one medium to another, **the sine of the angle of incidence bears a constant ratio to the sine of the angle of** the refraction, enabled Cassini to construct tables on a more scientific principle than had hitherto... | |
| 1834
...important discovery of Willebrord Snell, that when a ray of light passes from one medium to another, **the sine of the angle of incidence bears a constant ratio to the sine of the angle of** the refraction, enabled Cassini to construct tables on a more scientific principle than had hitherto... | |
| James Dwight Dana - 1837 - 571 Seiten
...when there is no refraction. But AB is the sine of the angle AEB, which is the angle of incidence, CD, **the sine of the angle CED, which is the angle of refraction....the index of refraction. In water, the ratio is as** 1.336 to 1. 1.336 is therefore the index of refraction of water. b. Double refraction. A line viewed... | |
| Society for the diffusion of useful knowledge - 1839
...vessel. Here the change is abrupt, but in the atmospheric refraction it is exceedingly gradual. 113. **The sine of the angle of incidence bears a constant ratio to the sine of the angle of** refraction for the same medium. The angle of incidence is the angle which the incident ray makes with... | |
| James Dwight Dana - 1844 - 633 Seiten
...when there is no refraction. But AB is the sine of the angle AEB, which is the angle of incidence, CD, **the sine of the angle CED, which is the angle of refraction....the index of refraction. In water, the ratio is as** 1.336 to 1. 1.336 is therefore the index of refraction of water. b. Double refraction. A line viewed... | |
| Dionysius Lardner - 1846
...this refraction is also proved to be subject to the same laws as the refraction of luminous rays. Thus **the sine of the angle of incidence bears a constant ratio to the sine of the angle of** refraction, when the refracting medium is given, and refracting media of different kinds refract these... | |
| 1851
...themselves : — 1st. The plane of refraction coincides with the plane of incidence. 2d. For the same media, **the sine of the angle of incidence bears a constant ratio to the sine of the angle of** refraction. Suppose in pi. 21, Jig. 25, I to be a ray of light, incident at the same point as, and... | |
| Johann Georg Heck - 1851
...themselves : — 1st. The plane of refraction coincides with the plane of incidence. 2d. For the same media, **the sine of the angle of incidence bears a constant ratio to the sine of the angle of** refraction. Suppose in pi. 21, fig. 25, / to be a ray of light, incident at the same point as, and... | |
| Bartholomew Price - 1852
...SPN = p sinrr», where p is constant for the same media, but varies for different media ; that is, **the sine of the angle of incidence bears a constant ratio to the sine of the angle of** refraction. The envelope of all the refracted rays is called the caustic by refraction of the given... | |
| James Dwight Dana - 1854 - 533 Seiten
...rarer tf> a (lender medium, is refracted TOWARDS the perpendicular • if from a denser to a rarer, ^t **is refracted FROM the perpendicular. It has been proved...of incidence bears a constant ratio to the sine of** tlw angle of refraction. This ratio is termed the index of refraction. In water, the ratio is as 1'335... | |
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