Elementary Treatise on the Wave-theory of LightLongmans, Green, 1873 - 247 страници |
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Страница 10
... less than what has been here supposed ; but , on the other hand , many millions of such molecules may be made to act together , by concentrating them in the foci of lenses or mir- rors , and the effects of their impulse might be ...
... less than what has been here supposed ; but , on the other hand , many millions of such molecules may be made to act together , by concentrating them in the foci of lenses or mir- rors , and the effects of their impulse might be ...
Страница 18
... less than the ratio of the times of vibration of a fundamental note and its octave . There is no reason for supposing , however , that the vibrations them- selves are confined within these limits . In fact , we know that there are ...
... less than the ratio of the times of vibration of a fundamental note and its octave . There is no reason for supposing , however , that the vibrations them- selves are confined within these limits . In fact , we know that there are ...
Страница 22
... less than the angle of refraction , and the devia- tion is from the perpendicular . ( 26 ) The angles of incidence and refraction are in the same plane ; and their sines are in an invariable ratio . In order to verify this law ...
... less than the angle of refraction , and the devia- tion is from the perpendicular . ( 26 ) The angles of incidence and refraction are in the same plane ; and their sines are in an invariable ratio . In order to verify this law ...
Страница 27
... less , the less the differ- ence of the refractive indices of the two media , and the re- flexion ceasing altogether when this difference vanishes . How is REFLEXION AND REFRACTION . 27.
... less , the less the differ- ence of the refractive indices of the two media , and the re- flexion ceasing altogether when this difference vanishes . How is REFLEXION AND REFRACTION . 27.
Страница 33
... less according to the former theory ; while , according to the latter , it is greater . Here , then , the two theories are directly at issue upon a point of fact , and we have only to ascertain how this fact stands , in order to be able ...
... less according to the former theory ; while , according to the latter , it is greater . Here , then , the two theories are directly at issue upon a point of fact , and we have only to ascertain how this fact stands , in order to be able ...
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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