Polarisation of LightMacmillan and Company, 1891 - 151 páginas |
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Página 3
... moving plate has been turned through a right angle , the light becomes completely extinguished . If the turning be continued beyond the right angle , the light will begin to revive ; and when a second right angle has been completed ...
... moving plate has been turned through a right angle , the light becomes completely extinguished . If the turning be continued beyond the right angle , the light will begin to revive ; and when a second right angle has been completed ...
Página 4
... moving plate is turned . Now it is to be C g a FIG . 1 . FIG . 2 . observed that this alternation depends only upon the angle through which one of the crystals has been turned , or , as it is usually stated , upon the relative angular ...
... moving plate is turned . Now it is to be C g a FIG . 1 . FIG . 2 . observed that this alternation depends only upon the angle through which one of the crystals has been turned , or , as it is usually stated , upon the relative angular ...
Página 34
... move is the direction of propagation of the ray of light . The intensity of light depends upon the extent of the vibrations or the height of the waves ; the colour upon the number of vibrations executed in a given interval of time . And ...
... move is the direction of propagation of the ray of light . The intensity of light depends upon the extent of the vibrations or the height of the waves ; the colour upon the number of vibrations executed in a given interval of time . And ...
Página 43
... of the spectrum ; ( b ) when the line is perpendicular to the slit , we have diagonal bands . In both cases we have an increase in the number of the bands when the compound piece is moved III . ] 43 POLARISATION OF LIGHT .
... of the spectrum ; ( b ) when the line is perpendicular to the slit , we have diagonal bands . In both cases we have an increase in the number of the bands when the compound piece is moved III . ] 43 POLARISATION OF LIGHT .
Página 44
William Spottiswoode. number of the bands when the compound piece is moved so as to present a greater thickness to the slit . ( 3. ) With their edges opposed , and their axes at right angles . Here also we have two cases : ( a ) when the ...
William Spottiswoode. number of the bands when the compound piece is moved so as to present a greater thickness to the slit . ( 3. ) With their edges opposed , and their axes at right angles . Here also we have two cases : ( a ) when the ...
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Términos y frases comunes
analyser be turned angle of incidence axis bands beam bi-axal crystals biquartz centre circular polarisation circularly coincide complementary complementary colours consequently Crown 8vo crystal plate cut perpendicularly dark difference of phase different colours double refraction effect ellipses equal ether exhibit extinguished field of view film glass hyperbolas Iceland spar inclined instrument intermediate laminæ left-handed mean-line motion Nicol Nicol's prism oblique opposite optic axes ordinary ordinary ray orthorhombic overlap pair parallel particle perpendicular phenomena placed plane containing plane of polarisation plane of reflexion plane of vibration plane-polarised plate of quartz polar clock polariscope polarised light polariser and analyser polarising angle position principal section produced quadrants quarter-undulation plate quartz plate rectilinear reflected refracted rays retardation rhombohedron right angles right-handed rotation seen selenite silver plate spectrum straight lines successive polarisation surface thickness tints tion traversed tube turned round uni-axal velocity wave length wedges
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