Elementary Treatise on the Wave-theory of LightLongmans, Green, 1873 - 247 страници |
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Страница 5
... appear of equal intensity , their illuminations are equal , and , therefore , the illuminating powers of the two lights are to one another as the squares of their distances from the screen . ( 9 ) Light is propagated with a finite ...
... appear of equal intensity , their illuminations are equal , and , therefore , the illuminating powers of the two lights are to one another as the squares of their distances from the screen . ( 9 ) Light is propagated with a finite ...
Страница 10
... appear to be easily submitted to the test of experiment . . If the weight of a molecule of light amounted to but one grain , its momentum would equal that of a cannon - ball , 150 pounds in weight , moving with the velocity of 1000 feet ...
... appear to be easily submitted to the test of experiment . . If the weight of a molecule of light amounted to but one grain , its momentum would equal that of a cannon - ball , 150 pounds in weight , moving with the velocity of 1000 feet ...
Страница 17
... appear , à priori , by what power of the amplitude it is to be repre- sented . In fact , we must define what we mean ... appears that the space of vibration diminishes in the inverse simple ratio of the distance . Thus the known law of ...
... appear , à priori , by what power of the amplitude it is to be repre- sented . In fact , we must define what we mean ... appears that the space of vibration diminishes in the inverse simple ratio of the distance . Thus the known law of ...
Страница 18
... appears , then , that the sensibility of the eye is confined within much narrower limits than that of the ear ; the ratio of the times of the extreme vibrations which affect the eye being only that of 1.58 to 1 , which is less than the ...
... appears , then , that the sensibility of the eye is confined within much narrower limits than that of the ear ; the ratio of the times of the extreme vibrations which affect the eye being only that of 1.58 to 1 , which is less than the ...
Страница 31
... appear from what has has been stated , that it holds , whatever be the modifications which the course of the light may undergo by reflexion or refraction . This law may be thus enunciated : - " The course pursued by any reflected or ...
... appear from what has has been stated , that it holds , whatever be the modifications which the course of the light may undergo by reflexion or refraction . This law may be thus enunciated : - " The course pursued by any reflected or ...
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amplitudes angle of incidence angle of polarization aperture axes bands beam bodies bright bands Canada balsam centre circularly-polarized coincides colours common light corresponding Crown 8vo crystal denote difference of phase diffracted direction distance diverging double refraction edge Edition elasticity ellipse equal ether extraordinary ray Fresnel fringes glass Iceland spar incident light incident ray inclined index of refraction intensity interference interval of retardation length light reflected luminous origin medium metal molecules observed optic axis ordinary ray parallel particles phenomena plane of incidence plane of polarization plane of reflexion plane-polarized plate polarized light polarized ray polarizing angle portions position principal section prism produced propagated PUBLISHED BY LONGMANS R. A. Proctor ratio reflected light reflected pencil refracted rays refractive index refrangibility result rhomb right angles rings second surface sin² spectrum substance theory thickness tion transmitted traversed undulation vary velocity vibrations vols wave wave-theory Woodcuts