Hand-books of Natural Philosophy and Astronomy: OpticsC. Lockwood & Company, 1878 - Physics |
Contents
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Other editions - View all
Hand-Books of Natural Philosophy and Astronomy: Heat Dionysius Lardner,George Carey Foster No preview available - 2016 |
Common terms and phrases
already explained angle of incidence angle of refraction apparent magnitude appear axes centre chromatic circular colour concave reflector consequently convex lens corresponding crystal curved diameter diminished direction disc distance distinct vision diverging double convex double refraction effect equal extreme eye glass eye piece focal length foci focus F focus of incident greater illuminated inch incident rays index of refraction instrument intensity lenses less luminous point magnifying power manner medium microscope motion moved object glass object piece observer opaque optic axis parallel rays pencil of rays perception perpendicular phenomena placed plane of polarisation plano-convex lens plate position principal focus prism produced proportion radii radius reflected rays reflecting surface refracting power refrangibility rendered represented in fig retina right angles screen secondary pencil seen side sine space spectrum spherical aberration spherical reflector supposed telescope tion tourmaline transmitted transparent tube vertex vertical violet visual magnitude yellow
Popular passages
Page 197 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.
Page 433 - In ordering from this List it is recommended, as a means of facilitating business and obviating error, to quote the numbers affixed to the volumes, as well as the titles and prices. CIVIL ENGINEERING, SURVEYING, ETC. 31.• WELLS AND WELL-SINKING.
Page viii - The perspicuity of the original has been retained, and chapters which had become obsolete, have been replaced by others of more modern character. The explanations throughout are studiously popular, and care has been taken to show the application of the various branches of physics to the industrial arts, and to the practical business of life.