A Treatise on Optics |
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Page vi
... angle , 79–81 ; a plate , 82 ; absolute and relative index of refraction , 83 , 84 ; refraction through a plate , 85-87 ; Def . of edge , faces , refracting angle , principal section of a prism , 88 ; deviation through a prism , minimum ...
... angle , 79–81 ; a plate , 82 ; absolute and relative index of refraction , 83 , 84 ; refraction through a plate , 85-87 ; Def . of edge , faces , refracting angle , principal section of a prism , 88 ; deviation through a prism , minimum ...
Page viii
... angle of an object seen through a lens , 198 ; magnifying power of a lens , 200 , 201 ; Telescopes , their object , 203 ; the Astronomical Tele- scope , its field of view , and magnifying power , the ragged edge and stop , 204-206 ...
... angle of an object seen through a lens , 198 ; magnifying power of a lens , 200 , 201 ; Telescopes , their object , 203 ; the Astronomical Tele- scope , its field of view , and magnifying power , the ragged edge and stop , 204-206 ...
Page 3
... angle of the cone which the pencil forms . 6. Def . When a pencil meets the surface of any sub- stance or medium ... angles which the incident and reflected rays make with the normal to the surface at the point of incidence are equal . 9 ...
... angle of the cone which the pencil forms . 6. Def . When a pencil meets the surface of any sub- stance or medium ... angles which the incident and reflected rays make with the normal to the surface at the point of incidence are equal . 9 ...
Page 4
... angle of refraction less than the angle of incidence { i . e . p ' < $ } . 11. Remark . The process by which these and physical laws in general are established experimentally is this . Direct experiments render the law probable ; such ...
... angle of refraction less than the angle of incidence { i . e . p ' < $ } . 11. Remark . The process by which these and physical laws in general are established experimentally is this . Direct experiments render the law probable ; such ...
Page 25
... angle , to find the position and number of the images formed by successive reflexions at the mirrors . Let the figure represent a section of the mirrors A , B by a plane passing through the luminous point Q , and perpendicular to each ...
... angle , to find the position and number of the images formed by successive reflexions at the mirrors . Let the figure represent a section of the mirrors A , B by a plane passing through the luminous point Q , and perpendicular to each ...
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Common terms and phrases
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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