Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc |
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Page vi
... present system , for the subject in the course of a boy's school - work : I therefore , after making some progress in it , wrote to obtain the opinion of the head mathematical masters of two or three of our best schools ; and I cannot ...
... present system , for the subject in the course of a boy's school - work : I therefore , after making some progress in it , wrote to obtain the opinion of the head mathematical masters of two or three of our best schools ; and I cannot ...
Page 3
... present are to be considered uniform . 3. The following example may serve to familiarize the reader with the idea of a ray and a pencil of light . " Light emanating from a luminous circular disc placed in the ceiling of a room , passes ...
... present are to be considered uniform . 3. The following example may serve to familiarize the reader with the idea of a ray and a pencil of light . " Light emanating from a luminous circular disc placed in the ceiling of a room , passes ...
Page 7
... present we will only con- sider the laws and some of the phenomena of re- flexion . Some surfaces , such as polished metal , do not refract at all others , like water , partly reflect and partly refract , the amount reflected bearing a ...
... present we will only con- sider the laws and some of the phenomena of re- flexion . Some surfaces , such as polished metal , do not refract at all others , like water , partly reflect and partly refract , the amount reflected bearing a ...
Page 8
... present supposing the reflecting surface to be quite 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 ...
... present supposing the reflecting surface to be quite 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 ...
Page 18
... present in talking of glass mirrors we shall always -neglect the thickness of the plate . The shaded portion of this figure is intended to represent the rays forming the faint image . Note . We have here , for convenience of explanation ...
... present in talking of glass mirrors we shall always -neglect the thickness of the plate . The shaded portion of this figure is intended to represent the rays forming the faint image . Note . We have here , for convenience of explanation ...
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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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