Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc |
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Page 3
... plane surfaces and others : in all such cases , unless expressly mentioned , we shall suppose that the axis of the pencil falls perpendicularly on the sur- face . ( vi ) Any substance through which light passes , such as air , water ...
... plane surfaces and others : in all such cases , unless expressly mentioned , we shall suppose that the axis of the pencil falls perpendicularly on the sur- face . ( vi ) Any substance through which light passes , such as air , water ...
Page 5
... plane perpendicular to its axis , will produce a luminous circle , the size of which varies as the plane of intersection is removed further from the opening . Thus there are depicted on the plane as many equal circles of light as there ...
... plane perpendicular to its axis , will produce a luminous circle , the size of which varies as the plane of intersection is removed further from the opening . Thus there are depicted on the plane as many equal circles of light as there ...
Page 6
... plane , and if from each of the points of its boundary we describe a succession of other figures similar to each other , and similarly placed , the resulting figure will approach nearer to that of those which are the greatest . If these ...
... plane , and if from each of the points of its boundary we describe a succession of other figures similar to each other , and similarly placed , the resulting figure will approach nearer to that of those which are the greatest . If these ...
Page 7
... PLANE REFLEXION . WHEN rays of light fall upon any surface , they are either sent back from the surface , or else they enter the surface in the first case they are said to be " reflected " from the surface , in the latter case they are ...
... PLANE REFLEXION . WHEN rays of light fall upon any surface , they are either sent back from the surface , or else they enter the surface in the first case they are said to be " reflected " from the surface , in the latter case they are ...
Page 8
... plane . 6. The simplest and at the same time the most com- mon instance of plane reflexion is that of a looking - glass ; in which we appear to see the image of any object , placed in front of the mirror , just as far behind the mirror ...
... plane . 6. The simplest and at the same time the most com- mon instance of plane reflexion is that of a looking - glass ; in which we appear to see the image of any object , placed in front of the mirror , just as far behind the mirror ...
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Common terms and phrases
Algebra angle of incidence Aq AQ ARITHMETIC astronomical beam beginners BROOKE FOSS WESTCOTT called Cambridge caustic curve centre CHAPTER Christ's College circle CLASS-BOOK Clifton College cloth colours concave lens Conic Sections conical convex lens cornea course Crown 8vo direction divergent ELEMENTARY TREATISE English Examination Papers explain Extra fcap eye-lens figure focal length formed Fourth Edition Galilean Geometrical Focus glass Grammar Greek Head Master John's College late Fellow Latin lenses luminous point magnifying power minimum deviation mirror MIXED MATHEMATICS nearer numerous Examples object object-glass OPTICS parallel rays pencil of rays placed plane reflexion point q principal focus principles prism rays close rays fall rays from Q rays which fall reader red rays reflected rays reflecting telescope retina Schools Second Edition seen shew small pencil spectrum straight line student Suppose telescope tion TRIGONOMETRY violet
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