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Having given the radius of an arc of any colour in the secondary rainbow, find the ratio of the sine of incidence to the sine of refraction when rays of that colour pass out of air into water.
A Synopsis of Practical Philosophy: Alphabetically Arranged, Containing a ... - Page 228
by John Carr - 1843 - 390 pages

## Philosophical Transactions of the Royal Society of London, Volumes 31-33

...Sine of Refraction. Another refraded Ray FG, and MK being taken to the Semidiameter of the Circle in the Ratio of the Sine of Incidence to the Sine of Refraction ; let LM be joined, and laftly make the Angle under KMN equal to half the given Angle under EI H. This...

## The Young Trigonometer's Compleat Guide: Being the Mystery and ..., Volume 1

Benjamin Martin - Trigonometry - 1736 - 328 pages
...BH, making the Angle of Refraftion HBQ^ whofc SincKH:AF::3: 4. < If* CD be a Superficies of Glafs, the Ratio of the Sine of Incidence, to the Sine of Refraction in Glaft, is found by Experiments to be as 1 7 to n ; therefore the Incident Ray AC lhall be refraficdfrom...

## The Monthly review. New and improved ser

1803
...form of the undulations, Huygens deduced the obliquity of refraction ; and, whereas in other rases .the ratio of the sine of incidence to the sine of refraction (or ordinate of the spherical undulation) is given, so in the Ic< land crystal, he affirms the r.itio...

## An Elementary Treatise on Natural Philosophy, Volume 2

René Just Haüy - Physics - 1807 - 427 pages
...thicknesses of the fluids at the places where the rings appeared, were nearly as 3 to 4, that is, in the ratio of the sine of incidence to the sine of refraction, when the light passes from water' into air. Newton imagined that this result might probably be extended...

## Annals of Philosophy, Or, Magazine of Chemistry, Mineralogy ..., Volume 4

Science - 1814
...and at 40° zenith distance j» .insensible. • r_.;rT! «>H; Let 0 = the zenith distance ; m : 1 the ratio of the sine of incidence to the sine of refraction in air of the density of that at the surface ; a = radius of the earth, and I — height of an uniform...

## The Annals of Philosophy, Volume 4

Agriculture - 1814
...amounts only to about 14", and at 40° /enith distance is insensible. Let 0 = the zenith distance ; m : 1 the ratio of the sine of incidence to the sine of refraction in air of the density of that at the surface ; a = radius of the earth, and I = height of an uniform...

## An Elementary Treatise on the Geometrical and Algebraical Investigation of ...

Daniel Cresswell - Euclid's Elements - 1817 - 436 pages
...a ray proceeding from the one, which shall be refracted in a direction passing through the other ; the ratio of the sine of incidence to the sine of refraction being also given. • (cxvi .) ' L . ' • * If a luminous point describe a circle, having its center...

## Register

University of Cambridge - 1818
...constantly full. 7. Having given the radius of an arc of any colour in the secondary rainbow, find the ratio of the sine of incidence to the sine of refraction when rays of that colour pass out of air into water. 8. If a body revolve in an ellipse (whose major and minor axes are...