A Treatise on Physical OpticsDeighton, Bell, 1892 - 411 páginas |
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Página xxi
... equal to the square root of its dielectric capacity 355 355 • 404. Maxwell's concluding remarks on the theory 356 405-406 . Hopkinson's experiments 356 407. Experiments on Iceland spar & c . 357 408-409 . Hertz's experiments 358 410 ...
... equal to the square root of its dielectric capacity 355 355 • 404. Maxwell's concluding remarks on the theory 356 405-406 . Hopkinson's experiments 356 407. Experiments on Iceland spar & c . 357 408-409 . Hertz's experiments 358 410 ...
Página 7
... radii of the spheres , I , I ' the intensities at dS , dS ' . Since the total quantity of light which falls on the two elements is equal , whence Ids = I'dS ' , Ir2 = I'r ' . Now if A , A ' be the amplitudes of Plan of this treatise.
... radii of the spheres , I , I ' the intensities at dS , dS ' . Since the total quantity of light which falls on the two elements is equal , whence Ids = I'dS ' , Ir2 = I'r ' . Now if A , A ' be the amplitudes of Plan of this treatise.
Página 10
... equal , and whose planes of polarization are the same , may be compounded . Let the first wave be given by ( 4 ) , and let the second wave be then if 2π λ v ' = A ' cos ( x − Vt - e ' ) ; - $ = ( 2π / λ ) ( x − Vt − e ) , d = ( 2π ...
... equal , and whose planes of polarization are the same , may be compounded . Let the first wave be given by ( 4 ) , and let the second wave be then if 2π λ v ' = A ' cos ( x − Vt - e ' ) ; - $ = ( 2π / λ ) ( x − Vt − e ) , d = ( 2π ...
Página 15
... equal in every respect , the angle BCA DAC ; whence the angle of incidence is equal to the angle of reflection . = 16. In order to prove the law of refraction , let V be the velocity of light in the second medium ; and with A as centre ...
... equal in every respect , the angle BCA DAC ; whence the angle of incidence is equal to the angle of reflection . = 16. In order to prove the law of refraction , let V be the velocity of light in the second medium ; and with A as centre ...
Página 18
... equal , then ( 2 ) and ( 3 ) become A2A cos Teλ , 8 = e . ( 4 ) , accordingly the intensity of the resultant light will be zero when e = ( n + 1 ) λ , and a maximum when enλ . It therefore follows that when the phases of the two waves ...
... equal , then ( 2 ) and ( 3 ) become A2A cos Teλ , 8 = e . ( 4 ) , accordingly the intensity of the resultant light will be zero when e = ( n + 1 ) λ , and a maximum when enλ . It therefore follows that when the phases of the two waves ...
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Términos y frases comunes
A₁ accordingly amplitudes angle of incidence aperture axis bands biaxal crystal centre circularly polarized colours components cos² diffraction direction of vibration displacement double refraction elastic ellipsoid emergent light equal equation ether extraordinary ray extraordinary wave follows Fresnel's glass Hence Iceland spar incident light index of refraction integral intensity light is incident light is polarized magnetic maxima and minima medium Nicol normal obtain optic axes ordinary and extraordinary ordinary ray parallel perpendicular Phil plane of incidence plane of polarization plate of quartz polarizing angle positive principal plane prism produced quartz r₁ reflected and refracted reflected light refracted waves rhomb right-handed rings rotation screen sin² spectrum suppose surface tangent theory thickness U₁ uniaxal crystal V₁ values velocity of propagation wave-front wave-length wave-surface whence whilst zero 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,...