...convex mirror are made to diverge more than before reflection. SECTION III. REFRACTION OF UGHT. 417. When a ray of light passes out of one medium into another of a different density, it changes its direction at the point which separates the two media. This phenomenon...

...from a focus q, where Subtracting (i) from (ii) (ii). 52. It can be shewn that when a ray is refracted out of one medium into another, as the angle of incidence increases, so also does the Deviation. Art. 34. This principle, which admits of an easy Geometrical proof, will...

...2, 1, and Concave to the surface of the earth. 81. VARIATION OF EEFRACTION IN RESPECT TO ALTITUDE. When a ray of light passes out of one medium into another, the more obliquely it strikes the surface of the second medium the more it is refracted, and if it...

...ratio to each other, whatever may be the obliquity of the incident ray. This is the same as saying that when a ray of light passes out of one medium into another, the sines of the angles of incidence and of refraction always preserve a • constant ratio for every...

...ratio to each other, whatever may be the obliquity of the incident ray. This is the same as saying that when a ray of light passes out of one medium into another, the sines of the angles of incidence and of refraction always preserve a constant ratio for every angle...

...of rays from ai point in the circular arc to an eye situated at a given point in the saa plane. 9. When a ray of light passes out of one medium into another, as d angle of incidence increases the angle of deviation also increases. How would this assertion be modified...