Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc |
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Page 28
... increases AO or decreases , Aq does just the opposite , in concave mirrors ; i.e. Q and q move in opposite directions . In the convex mirror they move in the same direction . ( 4 ) Since , in the concave mirror , when Q goes farther ...
... increases AO or decreases , Aq does just the opposite , in concave mirrors ; i.e. Q and q move in opposite directions . In the convex mirror they move in the same direction . ( 4 ) Since , in the concave mirror , when Q goes farther ...
Page 39
... increases and the breadth dimi- nishes in the moving plane , until at 9 , the section is a straight line in the moving plane , but at right angles to its former direction . Since this change goes on gradually , there must be one ...
... increases and the breadth dimi- nishes in the moving plane , until at 9 , the section is a straight line in the moving plane , but at right angles to its former direction . Since this change goes on gradually , there must be one ...
Page 58
... q move in the same direction , since as AQ increases , so must Aq from the formula . ( iv ) Hence and q always lie on opposite sides of the principal focus . 45. Let PQX be an object in front of the 58 [ CHAP . GEOMETRICAL OPTICS .
... q move in the same direction , since as AQ increases , so must Aq from the formula . ( iv ) Hence and q always lie on opposite sides of the principal focus . 45. Let PQX be an object in front of the 58 [ CHAP . GEOMETRICAL OPTICS .
Page 65
... increases , so also does the Deviation . Art . 34. This prin- ciple , which admits of an easy Geometrical proof , will ... increased , i.e. the angle which RS makes with 5 IX . ] REFRACTING PLATES AND PRISMS . 65 52. It can be shewn that ...
... increases , so also does the Deviation . Art . 34. This prin- ciple , which admits of an easy Geometrical proof , will ... increased , i.e. the angle which RS makes with 5 IX . ] REFRACTING PLATES AND PRISMS . 65 52. It can be shewn that ...
Page 66
... increased , i.e. the angle which RS makes with the normal has increased still more , and the ray therefore emerges as RS nearer to the thick end of the prism than PQ . If the deviation did not in- crease it would emerge just parallel to ...
... increased , i.e. the angle which RS makes with the normal has increased still more , and the ray therefore emerges as RS nearer to the thick end of the prism than PQ . If the deviation did not in- crease it would emerge just parallel to ...
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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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