A Treatise on Physical OpticsDeighton, Bell, 1892 - 411 páginas |
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Página xi
... edge • 64. Fresnel's integrals . Knockenhauer's series . 65 . 66 . do . do . Cauchy's series • 68. Diffraction by a circular aperture or disc 8888888 80 81 82 82 83 85 69. Intensity at the centre of the aperture or disc . Poisson's ...
... edge • 64. Fresnel's integrals . Knockenhauer's series . 65 . 66 . do . do . Cauchy's series • 68. Diffraction by a circular aperture or disc 8888888 80 81 82 82 83 85 69. Intensity at the centre of the aperture or disc . Poisson's ...
Página 20
... edge of the next bright band will be violet , and its edge of a reddish colour ; but as we proceed from the centre , the maximum intensity of one colour will coincide with the minimum of another , and the dark bands will altogether ...
... edge of the next bright band will be violet , and its edge of a reddish colour ; but as we proceed from the centre , the maximum intensity of one colour will coincide with the minimum of another , and the dark bands will altogether ...
Página 32
... edge of the first ring is dark blue , and its outer edge red ; and the order of succession of the colours of the first seven rings was found by Newton to be as follows :-( 1 ) black , blue , white , yellow , red ; ( 2 ) violet , blue ...
... edge of the first ring is dark blue , and its outer edge red ; and the order of succession of the colours of the first seven rings was found by Newton to be as follows :-( 1 ) black , blue , white , yellow , red ; ( 2 ) violet , blue ...
Página 82
... ux dx √x 1 น whence C = dx € ̃ux cos u du . π√2 0 1 C. R. vol . xv . 534 , 573 . 2 Mém . couronnés de l'Acad . de Bruxelles , vol . xxxi . 1 . STRAIGHT EDGE . The integration with respect to u can 82 DIFFRACTION CONTINUED .
... ux dx √x 1 น whence C = dx € ̃ux cos u du . π√2 0 1 C. R. vol . xv . 534 , 573 . 2 Mém . couronnés de l'Acad . de Bruxelles , vol . xxxi . 1 . STRAIGHT EDGE . The integration with respect to u can 82 DIFFRACTION CONTINUED .
Página 83
... Edge . 67. The first problem we shall consider will be that of diffraction by a straight edge . 0 B ' B A P Let First let the point P lie within the geometrical shadow . BAC be the front of the wave , and let BA = h ; then the 00 1 - y ...
... Edge . 67. The first problem we shall consider will be that of diffraction by a straight edge . 0 B ' B A P Let First let the point P lie within the geometrical shadow . BAC be the front of the wave , and let BA = h ; then the 00 1 - y ...
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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,...