An Elementary Treatise on Geometrical Optics |
From inside the book
Results 1-5 of 31
Page 8
... sides , whatever be the orientation of its plane . 4. A small plane area is placed at right angles to the axis of a paraboloid of revolution whose convex surface is uniformly luminous . Prove that the illumination produced at the point ...
... sides , whatever be the orientation of its plane . 4. A small plane area is placed at right angles to the axis of a paraboloid of revolution whose convex surface is uniformly luminous . Prove that the illumination produced at the point ...
Page 10
... sides PN , NQ are equal to the two sides P'N , NQ , each to each , and the * See note to p . 4 . angles PNQ , P'NQ are both right angles , therefore 10 [ CHAP . II . LAW OF REFLEXION . Geometrical construction for the reflected.
... sides PN , NQ are equal to the two sides P'N , NQ , each to each , and the * See note to p . 4 . angles PNQ , P'NQ are both right angles , therefore 10 [ CHAP . II . LAW OF REFLEXION . Geometrical construction for the reflected.
Page 11
... sides PM , MA are equal to the two sides QN , NB each to each , and the angles at = = = = M and N are right angles ; therefore AP 8-11 . ] 11 REFLEXION OF RAYS . Reflexion of a ray at a plane surface.
... sides PM , MA are equal to the two sides QN , NB each to each , and the angles at = = = = M and N are right angles ; therefore AP 8-11 . ] 11 REFLEXION OF RAYS . Reflexion of a ray at a plane surface.
Page 12
... sides of the one are equal to the three sides of the other , each to each ; there- fore the angles AOP , BOQ are equal . This proves the proposition . Conversely , if two lines PO , OQ lie in a plane normal to the reflecting plane and ...
... sides of the one are equal to the three sides of the other , each to each ; there- fore the angles AOP , BOQ are equal . This proves the proposition . Conversely , if two lines PO , OQ lie in a plane normal to the reflecting plane and ...
Page 14
... side of the plane . EXAMPLES . 1. If a ray of light after reflexion at each of the sides of a triangle in succession retrace its path , show that it must proceed along the lines joining the feet of the perpendiculars drawn from the ...
... side of the plane . EXAMPLES . 1. If a ray of light after reflexion at each of the sides of a triangle in succession retrace its path , show that it must proceed along the lines joining the feet of the perpendiculars drawn from the ...
Other editions - View all
An Elementary Treatise on Geometrical Optics (Classic Reprint) R. S. Heath No preview available - 2016 |
Common terms and phrases
achromatic angle of incidence aperture apparent magnitude astronomical telescope axis B₁ called caustic centre circle coloured concave concave lens conjugate foci converge convex lens corresponding Crown 8vo denote direction distinct vision Edited emerge parallel emergent ray equal equation extreme pencils eye-glass eye-lens eye-piece field of view final image focal length focal plane glass Hence illuminated inches incident ray inclined infinity instrument k₁ lenses linear magnitudes luminous magnifying power meet nodal points normal object object-glass object-mirror P. G. Tait pair of conjugate perpendicular placed plane mirror point Q position principal focus principal plane principal points prism pupil radii radius ray of light rays diverging reflected rays reflexion refracting surface refractive index respectively retina right angles second medium seen small mirror spectrum sphere spherical surface subtended suppose tangent theorem triangles vertex visual angle
Popular passages
Page 209 - Greek and English Testament, in parallel columns on the same page. Edited by J. SCHOLEFIELD, MA late Regius Professor of Greek in the University. New Edition, with the marginal references as arranged and revised by DR SCRIVENER.
Page 211 - The Pointed Prayer Book, being the Book of Common Prayer with the Psalter or Psalms of David, pointed as they are to be sung or said in Churches.
Page 209 - The New Testament in the Original Greek, according to the Text followed in the Authorised Version, together with the Variations adopted in the Revised Version.
Page 210 - SCRIPTURES, &c. The Cambridge Paragraph Bible of the Authorized English Version, with the Text revised by a Collation of its Early and other Principal Editions...
Page 8 - The Electrical Researches of the Honourable Henry Cavendish, FRS Written between 1771 and 1781, Edited from the original manuscripts in the possession of the Duke of Devonshire, KG, by J. CLERK MAXWELL, FRS Demy 8vo. cloth, iSs. Hydrodynamics, a Treatise on the Mathematical Theory of Fluid Motion, by HORACE LAMB, MA, Professor of Mathematics in the University of Adelaide.
Page 4 - Pindar. Olympian and Pythian Odes. With Notes Explanatory and Critical, Introductions and Introductory Essays. Edited by CAM FENNELL, MA, late Fellow of Jesus College. Crown 8vo. cloth. gs. The Isthmian and Nemean Odes by the same Editor. 9*.
Page 211 - Wilson's Illustration of the Method of explaining the New Testament, by the early opinions of Jews and Christians concerning Christ.
Page 209 - The Parallel New Testament Greek and English. The New Testament, being the Authorised Version set forth in 1611 Arranged in Parallel Columns with the Revised Version of 1881, and with the original Greek, as edited by FHA SCRIVENER, MA, DCL, LL.D. Prebendary of Exeter and Vicar of Hendon. Crown 8vo.
Page 210 - The Missing Fragment of the Latin Translation of the Fourth Book of Ezra, discovered, and edited with an Introduction and Notes, and a facsimile of the MS., by ROBERT L.
Page 212 - The Homilies, with Various Readings, and the Quotations from the Fathers given at length in the Original Languages. Edited by GE CORRIE, DD Master of Jesus College. Demy Octavo. •js. 6d. Two Forms of Prayer of the time of Queen Elizabeth. Now First Reprinted. Demy Octavo. 6d. Select Discourses, by JOHN SMITH, late Fellow of Queens