Elementary Treatise on the Wave-theory of LightLongman, Brown, Green, Longmans, and Roberts, 1857 - 208 páginas |
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Página 3
... conjointly . Hence if a denote the area of the luminous surface , and i the quan- tity emitted from a single point , which is a measure of the absolute brightness , the intensity of the illumination , at B 2 PROPAGATION OF LIGHT . 3.
... conjointly . Hence if a denote the area of the luminous surface , and i the quan- tity emitted from a single point , which is a measure of the absolute brightness , the intensity of the illumination , at B 2 PROPAGATION OF LIGHT . 3.
Página 5
... denote the absolute brightnesses of the two lights , a and a ' the areas of the luminous surfaces , and d and d ' their distances from the paper , the intensities of illumination are ai sin d2 and a'ï ' sin 0 d'2 respectively ; and ...
... denote the absolute brightnesses of the two lights , a and a ' the areas of the luminous surfaces , and d and d ' their distances from the paper , the intensities of illumination are ai sin d2 and a'ï ' sin 0 d'2 respectively ; and ...
Página 7
... denoted by a , the velocity of light will be V = 2a × 2np . If n be the number of revolutions in a second correspond- ing to the mth eclipse , the velocity of light will be given by the formula , V = 2a × 2np 2m - 1 The apparatus ...
... denoted by a , the velocity of light will be V = 2a × 2np . If n be the number of revolutions in a second correspond- ing to the mth eclipse , the velocity of light will be given by the formula , V = 2a × 2np 2m - 1 The apparatus ...
Página 14
... denote the length of the wave , the time of vibration , and v the velocity of wave - propagation , λ = VT . ( 17 ) We have hitherto considered the propagation of vibratory movement without reference to any diversity in its nature . It ...
... denote the length of the wave , the time of vibration , and v the velocity of wave - propagation , λ = VT . ( 17 ) We have hitherto considered the propagation of vibratory movement without reference to any diversity in its nature . It ...
Página 19
... denote the angles which the portions of the ray in the rarer and denser medium , respec- tively , make with the perpendicular to the common surface , the second part of the law of refraction is expressed by the equation , sin , sin = μ ...
... denote the angles which the portions of the ray in the rarer and denser medium , respec- tively , make with the perpendicular to the common surface , the second part of the law of refraction is expressed by the equation , sin , sin = μ ...
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Palavras e frases frequentes
angle of incidence aperture axes azimuth bands beam bright bands centre circularly polarized coincides colours common light corresponding Crown 8vo crystal dark denote deviation diameter difference of phase diffraction direction distance diverging double refraction edge effect elasticity elliptically polarized equal ether Fresnel fringes glass Iceland spar inci incident light incident ray inclined intensity interference interval of retardation Jamin length light reflected luminous origin medium metal mirror molecules Newton observed opposite optic axis parallel particles perpendicular plane phenomena plane of incidence plane of polarization plane of reflexion plane-polarized polarized light polarized ray polarizing angle portions position Post 8vo principal section prism produced propagated ratio reflected light reflected pencil refracted rays refractive index refrangibility result rhombohedron right angles rings Second Edition shadow spectrum square substance thickness tion transmitted traversed undulation vary velocity velocity of propagation vibrations vols wave-theory Woodcuts
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