A Treatise on Physical OpticsDeighton, Bell, 1892 - 411 páginas |
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Página xii
... origin , and whose gene- rators pass through the circle of contact of the tangent plane at 121 121 • • • • • 122 the extremity of an optic axis 117. Uniaxal crystals . Proof of Huygens ' construction 118. Discovery of conical refraction ...
... origin , and whose gene- rators pass through the circle of contact of the tangent plane at 121 121 • • • • • 122 the extremity of an optic axis 117. Uniaxal crystals . Proof of Huygens ' construction 118. Discovery of conical refraction ...
Página 6
... origin . This constant is therefore a purely geometrical one . The quantity V is called the velocity of propagation of the wave , and measures the velocity with which light is travelling in the medium . In isotropic media , V is ...
... origin . This constant is therefore a purely geometrical one . The quantity V is called the velocity of propagation of the wave , and measures the velocity with which light is travelling in the medium . In isotropic media , V is ...
Página 17
... v = A cos ( x - Vt ) , v'A ' cos ( x- Vt - e ) , λ the origin being suitably chosen ; accordingly the resultant of these two vibrations is B. O. 2 2π v + v ' = A cos ( x CHAPTER II Description of the phenomenon of interference.
... v = A cos ( x - Vt ) , v'A ' cos ( x- Vt - e ) , λ the origin being suitably chosen ; accordingly the resultant of these two vibrations is B. O. 2 2π v + v ' = A cos ( x CHAPTER II Description of the phenomenon of interference.
Página 18
... origin , otherwise it would be impossible to insure that the amplitudes of the two waves should be equal , or that the difference of phase should remain invariable ; accordingly if the light from two different candles were made to pass ...
... origin , otherwise it would be impossible to insure that the amplitudes of the two waves should be equal , or that the difference of phase should remain invariable ; accordingly if the light from two different candles were made to pass ...
Página 21
... origin situated on the axis CA of the bi - plates , a small pencil of light after passing through the plates CQ , Cq will appear to diverge from two foci S , H , such that SH is perpendicular to OC . Let OQRT be any ray , draw QM ...
... origin situated on the axis CA of the bi - plates , a small pencil of light after passing through the plates CQ , Cq will appear to diverge from two foci S , H , such that SH is perpendicular to OC . Let OQRT be any ray , draw QM ...
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Términos y frases comunes
A₁ accordingly amplitude angle of incidence aperture axis bands biaxal crystal centre change of phase circularly polarized colours cos² critical angle diffraction direction of vibration displacement dx dy elastic ellipsoid elliptically polarized equal equations of motion ether extraordinary ray extraordinary wave follows formulæ Fresnel's glass Hence Iceland spar incident light index of refraction integral intensity light is incident light is polarized Lord Rayleigh medium Nicol normal obtain optic axes parallel perpendicular plane of incidence plane of polarization plate of quartz polarized light polarized perpendicularly polarizing angle prism produced quantity quartz reflected and refracted reflected light refracted wave rhomb right-handed rings rotation sin² spectrum suppose surface theory thickness transmitted transparent U₁ uniaxal crystal V₁ values velocity of propagation wave-front wave-length wave-surface whence whilst μ²
Pasajes populares
Página 372 - Nicol's prism turned in any way. [Shown.] (5) The spectrum of the reflected light is frequently found to consist almost entirely of a comparatively narrow band. When the angle of incidence is increased, the band moves in the direction of increasing refrangibility, and at the same time increases rapidly in width. In many cases the reflection appears to be almost total.
Página 356 - The difference between these numbers is greater than can be accounted for by errors of observation, and shows that our theories of the structure of bodies must be much improved before we can deduce their optical from their electrical properties. At the same time, I think that the agreement of the numbers is such that if no greater discrepancy were found between the numbers derived from the optical and...
Página 347 - To fill all space with a new medium whenever any new phenomenon is to be explained is by no means philosophical, but if the study of two different branches of science has independently suggested the idea of a medium, and if the properties which must be attributed to the medium in order to account for electromagnetic phenomena are of the same kind as those which, we attribute to the luminiferous medium in order to account for the phenomena of light, the evidence for the physical existence of the medium...
Página 347 - But the properties of bodies are capable of quantitative measurement. We therefore obtain the numerical value of some property of the medium, such as the velocity with which a disturbance is propagated through it, which can be calculated from electromagnetic experiments, and also observed directly in the case of light. If it should be found that the velocity of propagation of electromagnetic disturbances is the same as the velocity of light, and this not only in air, but in other transparent media,...