Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc |
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Page 2
... straight line in which it was travelling to another straight line . 2 . Before going any further we will give the defi- nition of some terms which we shall often have to use : - ( i ) Any point of a luminous body is sending out light in ...
... straight line in which it was travelling to another straight line . 2 . Before going any further we will give the defi- nition of some terms which we shall often have to use : - ( i ) Any point of a luminous body is sending out light in ...
Page 4
... straight line of light from O travel round the hole ABCD : let abcd be the limit of light traced out by it upon the floor below . Fig . 2 . B ( ii ) Take any point P on the boundary of the hole , and think of all the rays disc and pass ...
... straight line of light from O travel round the hole ABCD : let abcd be the limit of light traced out by it upon the floor below . Fig . 2 . B ( ii ) Take any point P on the boundary of the hole , and think of all the rays disc and pass ...
Page 38
... straight line perpendicular to the plane of the paper ; and rays pass all through this small line . ( iii ) HK , since it rotates about the point 9 , describes a figure which may be called an elongated figure of eight , so that there ...
... straight line perpendicular to the plane of the paper ; and rays pass all through this small line . ( iii ) HK , since it rotates about the point 9 , describes a figure which may be called an elongated figure of eight , so that there ...
Page 39
... straight line in that plane per- pendicular to the plane RAQ . If this plane be supposed to move gradually from 4 , to 9 ,, remaining parallel to itself , the height of the section increases and the breadth dimi- nishes in the moving ...
... straight line in that plane per- pendicular to the plane RAQ . If this plane be supposed to move gradually from 4 , to 9 ,, remaining parallel to itself , the height of the section increases and the breadth dimi- nishes in the moving ...
Page 72
... straight line joining their centres being called the axis of the lens . This definition includes those lenses in which one surface is plane , since a plane may be regarded as a sphere of an infinite radius . Lenses are distinguished by ...
... straight line joining their centres being called the axis of the lens . This definition includes those lenses in which one surface is plane , since a plane may be regarded as a sphere of an infinite radius . Lenses are distinguished by ...
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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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