A Treatise on Physical OpticsDeighton, Bell, 1892 - 411 páginas |
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Página vii
... obtained , which are sufficient for the solution of every conceivable problem ; and if the number of equations obtained is insufficient , the specification is incomplete , or some necessary condition has been overlooked . I consider it ...
... obtained , which are sufficient for the solution of every conceivable problem ; and if the number of equations obtained is insufficient , the specification is incomplete , or some necessary condition has been overlooked . I consider it ...
Página 3
... obtain the equations of motion and the boundary conditions ; and the solution of these equations would furnish a ... obtaining any information upon this question , is to adopt the inductive method of making some hypothesis which is ...
... obtain the equations of motion and the boundary conditions ; and the solution of these equations would furnish a ... obtaining any information upon this question , is to adopt the inductive method of making some hypothesis which is ...
Página 10
... ( 4 ) , and let the second wave be then if 2π λ v ' = A ' cos ( x − Vt - e ' ) ; - $ = ( 2π / λ ) ( x − Vt − e ) , d = ( 2π / λ ) ( e − e ' ) ; COMPOSITION OF WAVES . we obtain v + v ′ 10 INTRODUCTION . Intensity of light.
... ( 4 ) , and let the second wave be then if 2π λ v ' = A ' cos ( x − Vt - e ' ) ; - $ = ( 2π / λ ) ( x − Vt − e ) , d = ( 2π / λ ) ( e − e ' ) ; COMPOSITION OF WAVES . we obtain v + v ′ 10 INTRODUCTION . Intensity of light.
Página 11
... obtain شرح w2 2vw cos 8 + = A2 A'2 = sin2 S ...... AA ' .. ( 7 ) . From equation ( 7 ) , we see that the elements of ether describe ellipses , whose planes are at right angles to the direction of propagation . The resultant light in ...
... obtain شرح w2 2vw cos 8 + = A2 A'2 = sin2 S ...... AA ' .. ( 7 ) . From equation ( 7 ) , we see that the elements of ether describe ellipses , whose planes are at right angles to the direction of propagation . The resultant light in ...
Página 19
... obtain SP - HP = 2αx sin a . / d = SH . x / d . Since the two images are produced by the same source , their amplitudes will be equal , whence the intensity is equal to 2παx sin a 4A2 cos2 αλ . ( 5 ) . Since a is a very small angle , we ...
... obtain SP - HP = 2αx sin a . / d = SH . x / d . Since the two images are produced by the same source , their amplitudes will be equal , whence the intensity is equal to 2παx sin a 4A2 cos2 αλ . ( 5 ) . Since a is a very small angle , we ...
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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,...