 | C. Welborne Piper - 1901 - 186 pages
...refracted portion of the ray with the normal bh, is the angle of refraction, and the sine of this angle is equal to the sine of the angle of incidence divided by the relative refractive index from air into glass ; or, to put the relationship of the angles in another... | |
 | George Edmund De Schweinitz - 1902 - 828 pages
...formed by the ray with the perpendicular after refraction is called the angle of refraction — angle R. The sine of the angle of incidence, divided by the sine of the angle of refraction, gives the index of refraction. Glass used in the manufacture of spectacles has an index of refraction... | |
 | 1892 - 334 pages
...refraction is somewhat as follows : the index of refraction of a substance is equal to the quotient of the sine of the angle of incidence divided by the sine of the angle of refraction. A simple figure will readily make this clear. Let ABCD (figure i) represent the outline of a circular... | |
 | Edward E. Gibbons - 1904 - 498 pages
...refracting medium to the passage of light. In other words the index of refraction of a substance is the sine of the angle of incidence divided by the sine of the angle of refraction. The law is illustrated in the following way : Let M be a refracting medium ; abc a train of plane waves... | |
 | Charles Riborg Mann - 1905 - 488 pages
...Therefore [cf. equation (18)1 ;i = — — am r cut od sin r ac (19). Thus the index of refraction is equal to the sine of the angle of incidence divided by the sine of the angle of refraction. Since n FIG. 203. REFRACTION DIAGRAM these angles are easily measured, this ratio is more convenient... | |
 | Lynn Banks McMullen - 1906 - 474 pages
...(Fig. 206). The value of the critical angle may be found as follows: The index of refraction equals the sine of the angle of incidence divided by the sine of the angle of refraction, equals, in this case, the sine of the critical angle divided by the sine of 90° (which is unity).... | |
 | Simon Henry Gage - 1908 - 376 pages
...the rarer medium and that taken by the ray in the denser medium. The relationship is expressed thus : Sine of the angle of incidence divided by the sine of the angle of refraction equals the indexofrefraction. In the figures, Sin CBN' of refraction. Worked out completelv in Fig.... | |
 | Charles Francis Adams - 1909 - 204 pages
...in this equation, we have Z i = 1.D + £ A, or » = K-*> + .4)- (2) Since the index of refraction = sine of the angle of incidence divided by the sine of the angle of refraction, . sin . • Index ot retraction = sin ^ A The sines of these angles can be found in Table 13, Appendix,... | |
 | Charles Greeley Abbot - 1911 - 542 pages
...of incidence, and the angle c 7 cB the angle of refraction. A principal law of refraction is this: The sine of the angle of incidence divided by the sine of the angle of refraction is constant for a ray of a single color entering a given substance, whatever the angle at which it... | |
 | Victor Dean Hawkins - 1912 - 214 pages
...angle of refraction is the absolute index of refraction. When light passes from one medium to another, the sine of the angle of incidence divided by the sine of the angle of refraction is the relative index of refraction. This is usually written sin i — — = u sin r In general, when... | |
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It may also be defined as the sine of the angle of incidence divided by the sine of the angle of refraction, as light passes from air into the substance. 
