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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.
Solutions of the Cambridge Problems, from 1800 to 1820 - Page 687
by John Martin Frederick Wright - 1836

## Opticks:: Or, A Treatise of the Reflections, Refractions, Inflections and ...

Isaac Newton - Optics - 1730 - 432 pages
...Incidence to the Sine of Refraction out of the firft Medium into any third Medium, and of the Proportion of the Sine of Incidence to the Sine of Refraction out of that third Medium into the fecond Medium. By the firft Theorem the Refractions of the Rays of every...

## Philosophical Transactions, Giving Some Account of the ..., Volumes 31-33

Meteorology - 1723 - 1342 pages
...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 - Mathematics - 1736 - 360 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...

## An Experimental Inquiry on Some Parts of the Animal Structure

Sir Clifton Wintringham - Anatomy - 1740 - 370 pages
...Rays of the fame denomination, pafling from one Medium to another, is compounded of the proportion of the Sine of Incidence to the Sine of Refraction out of the firft Medium into any third, and of the proportion of the Sine of Incidence to the \$me of Refraction)...

## A New and Compendious System of Optics ...

Benjamin Martin - Electronic books - 1740 - 398 pages
...the Theorem in Art. 16. Chap. I. of Dioptrics, by putting I to R, as 4 to 3 ; which is the Proportion of the Sine of Incidence, to the Sine of Refraction out of Air into Water. 26. Let us now confider the refracted Ray AG, as reflected from the Concave Surface...

## The Elements of Optics: Designed for the Use of Students in the University

James Wood - Geometrical optics - 1801 - 251 pages
...PROP. XXII. 1 08. Having given the ratio of the fines of incidence and , refraStion, when a ray paffes out of one medium into each of two others, to find the ratio of thf Jine of incidence to the fine ofrefraction out of one of the latter mediums into the other. Let...

## The Monthly review. New and improved ser, Volume 40

1803 - 572 pages
...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 - 486 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...