 | 1834 - 578 Seiten
...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 - 574 Seiten
...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 - 810 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 - 380 Seiten
...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 - 660 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 - 664 Seiten
...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 - 716 Seiten
...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 - 712 Seiten
...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 - 582 Seiten
...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 - 946 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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The sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction. 
