A Treatise on OpticsMacmillan and Company, 1859 - 311 sider |
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Side vii
... colour - and the index of refraction , -test of the law of refrac- tion , 162-165 ; standard scale of colours , 166 ; Def . of deviation , dis- persion , irrationality of dispersion , secondary spectra , 167 ; dispersion of two colours ...
... colour - and the index of refraction , -test of the law of refrac- tion , 162-165 ; standard scale of colours , 166 ; Def . of deviation , dis- persion , irrationality of dispersion , secondary spectra , 167 ; dispersion of two colours ...
Side viii
... colours and dimensions of the rainbow , 269— 272 ; general remarks , 273 . 217 * * * * * * * For an Elementary Course the attention of the Student may be confined to the following articles : - 1-34 , 37-41 , 44 , 45 , 57 , 58 , 65 , 74 ...
... colours and dimensions of the rainbow , 269— 272 ; general remarks , 273 . 217 * * * * * * * For an Elementary Course the attention of the Student may be confined to the following articles : - 1-34 , 37-41 , 44 , 45 , 57 , 58 , 65 , 74 ...
Side 141
... colours in diffe- .. or least refracted end , ning orange , yellow , as we proceed to the = passes with minimum ism ... coloured light at any point of it ixture of rays of a higher degree of refran- One point of the sun's disc with rays ...
... colours in diffe- .. or least refracted end , ning orange , yellow , as we proceed to the = passes with minimum ism ... coloured light at any point of it ixture of rays of a higher degree of refran- One point of the sun's disc with rays ...
Side 143
... colours in diffe- rent parts , being red at the lowest , or least refracted end , then by a gradual change of tint ... colour . The red rays are the least , and the violet rays the most refrangible . Obs . The elongation of the spectrum ...
... colours in diffe- rent parts , being red at the lowest , or least refracted end , then by a gradual change of tint ... colour . The red rays are the least , and the violet rays the most refrangible . Obs . The elongation of the spectrum ...
Side 144
... colours admit of no further decomposition , since when ana- lyzed by a second prism at E , and received on a screen F , the appearance there is a spot of uniform colour , the same as at T , and of dimension the same as if the pencil at ...
... colours admit of no further decomposition , since when ana- lyzed by a second prism at E , and received on a screen F , the appearance there is a spot of uniform colour , the same as at T , and of dimension the same as if the pencil at ...
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aberration achromatism angle of incidence axis QA bright centre circle of least coincides colours concave conical surfaces convex lens cos² Crown 8vo cuts the axis deviation diameter direct pencil distance emergent equation excentrical eye-glass eye-piece Fcap field of view fixed lines focal length geometrical focus Hence illumination image formed incident directly incident pencil index of refraction intersection lenses luminous point magnifying power medium object object-glass parallel rays passes pencil of parallel pencil of rays pencil whose axis perpendicular plane surface point of incidence point q position primary plane principal focus principal plane prism radius rays incident reflected or refracted reflected pencil reflexion or refraction refracted rays refracting angle refracting surface refractive index shew small oblique pencil small pencil spectrum sphere spherical reflector spherical surface subtends supposed telescope thin lens v₁ v₂ αμ
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