Hand-books of Natural Philosophy and Astronomy: OpticsC. Lockwood & Company, 1878 |
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
angle of incidence angle of refraction apparent magnitude appear axes blue centre chromatic circular coincide colour consequently convergent power convex lens corresponding crown glass crystal curves dark diameter diminished direction disc distance distant objects distinct vision diverging double convex double refraction effect equal extraordinary pencil extreme eye glass eye piece focal length foci greater illuminated inch incident rays index of refraction instrument intensity lenses less magnifying power manner medium microscope motion moved number of rays object glass object piece observer optic axis parallel rays pencil of rays perception perpendicular phenomena placed plane of polarisation plate position principal focus prism produced proportion pupil radii radius reflecting surface refracted rays refracting power refrangibility rendered represented in fig retina right angles screen seen side sine solar light space spectrum spherical aberration spherical reflector supposed telescope tion tourmaline transmitted transparent tube violet 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Page viii - The perspicuity of the original has been retained, and chapters which had become obsolete, have been replaced by others of more modern character.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.