Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc |
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Page 2
... centre of light , " or a luminous point . " 66 ( ii ) And any one of such straight lines is called a " Ray . ” ( iii ) Any number of consecutive Rays form a " pencil . " The most convenient form in which to imagine a pencil is a solid ...
... centre of light , " or a luminous point . " 66 ( ii ) And any one of such straight lines is called a " Ray . ” ( iii ) Any number of consecutive Rays form a " pencil . " The most convenient form in which to imagine a pencil is a solid ...
Page 3
... room , passes through a rectangular aperture in the floor . Ascertain the form of the luminous patch on the floor of the room below . " ( i ) Let O be the centre of the I - 2 I. ] 3 INTRODUCTION . Thus if MM' were a mirror, it is ...
... room , passes through a rectangular aperture in the floor . Ascertain the form of the luminous patch on the floor of the room below . " ( i ) Let O be the centre of the I - 2 I. ] 3 INTRODUCTION . Thus if MM' were a mirror, it is ...
Page 4
... centre of the disc ; and let a 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 ...
... centre of the disc ; and let a 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 ...
Page 15
... centre is O and radius OQ . Fig . 10 . B ... Qм , For QM , = q , M , and MO is common ; M10 = q , M ,, MO , each to each , and the angle QM , O = angle q , M , O ; .. the base QO = the base q , 0 . 2 In just the same way , since q , II ...
... centre is O and radius OQ . Fig . 10 . B ... Qм , For QM , = q , M , and MO is common ; M10 = q , M ,, MO , each to each , and the angle QM , O = angle q , M , O ; .. the base QO = the base q , 0 . 2 In just the same way , since q , II ...
Page 16
... centre O , and radius OQ . 1 2 It must be observed that hitherto we have only con- sidered rays which fall upon OB first . If we now con- sider those which fall first on OA we shall obtain three more images P , P , P. It can be shewn ...
... centre O , and radius OQ . 1 2 It must be observed that hitherto we have only con- sidered rays which fall upon OB first . If we now con- sider those which fall first on OA we shall obtain three more images P , P , P. It can be shewn ...
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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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