Elementary Treatise on the Wave-theory of LightLongmans, Green, 1873 - 247 страници |
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Страница 102
... alternately bright and dark . These are the interior fringes ; and they are in general closer , and more finely marked than the ex- terior . When the breadth of the obstacle is considerable , the interior fringes disappear , and the ...
... alternately bright and dark . These are the interior fringes ; and they are in general closer , and more finely marked than the ex- terior . When the breadth of the obstacle is considerable , the interior fringes disappear , and the ...
Страница 103
... alternately bright and dark , distributed symmetri- cally on either side of the line passing through the luminous point and the centre of the aperture . If we trace these fringes , from their origin at the aper- ture to any distance ...
... alternately bright and dark , distributed symmetri- cally on either side of the line passing through the luminous point and the centre of the aperture . If we trace these fringes , from their origin at the aper- ture to any distance ...
Страница 111
... alternately positive and negative . Accordingly the intensities , 1 + m , 1 + m − m ' , 1 + m - m ' + m " , & c . , are alternately greater and less than 2 ; and the intensity of the light sent to the point R is alternately greater and ...
... alternately positive and negative . Accordingly the intensities , 1 + m , 1 + m − m ' , 1 + m - m ' + m " , & c . , are alternately greater and less than 2 ; and the intensity of the light sent to the point R is alternately greater and ...
Страница 117
... alternately nothing and a maximum ; and it is obvious from the preceding that the distances of these points will be the values of b given by the formula 1 ( + ) = nλ ; in which the points of complete darkness correspond to the even ...
... alternately nothing and a maximum ; and it is obvious from the preceding that the distances of these points will be the values of b given by the formula 1 ( + ) = nλ ; in which the points of complete darkness correspond to the even ...
Страница 130
... whole succession of colours is called Newton's scale . ( 143 ) The principal laws of these phenomena are included in the following propositions : I. In homogeneous light , the rings are alternately bright 130 COLOURS OF THIN PLATES .
... whole succession of colours is called Newton's scale . ( 143 ) The principal laws of these phenomena are included in the following propositions : I. In homogeneous light , the rings are alternately bright 130 COLOURS OF THIN PLATES .
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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