Essentials of physicsW.B. Saunders, 1896 - 319 pages |
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Page 149
... reflection will be smaller , and the ray L K after reflection will meet the axis at some point 7 be- tween C and F. All the rays from L will intersect at 7. L and 7 are called conjugate foci . A focus is the point where reflected rays ...
... reflection will be smaller , and the ray L K after reflection will meet the axis at some point 7 be- tween C and F. All the rays from L will intersect at 7. L and 7 are called conjugate foci . A focus is the point where reflected rays ...
Page 153
... reflection . Every reflected ray cuts the one next to it , and their points of inter- section form a curved surface , called the caustic by reflection . This curve can be seen when light is reflected from the inside of a cup containing ...
... reflection . Every reflected ray cuts the one next to it , and their points of inter- section form a curved surface , called the caustic by reflection . This curve can be seen when light is reflected from the inside of a cup containing ...
Page 154
... reflected back again to the posterior surface , and so on until the original ray undergoes so many splittings that it can no longer produce distinct effects . If an eye were placed at b , d , g , it would see multiple images of A in the ...
... reflected back again to the posterior surface , and so on until the original ray undergoes so many splittings that it can no longer produce distinct effects . If an eye were placed at b , d , g , it would see multiple images of A in the ...
Contents
BOOK I | 17 |
The Attractions of Matter | 26 |
Matter Force and Motion | 33 |
37 other sections not shown
Common terms and phrases
acid ampères angle aperture armature attraction axis barometer battery body called camera carbon cell chemical ciliary muscle circuit coil collodion colors concave condensing conductor connected containing convex convex lens cornea crystalline lens Describe direction disk dynamo electricity electro-magnet electrolysis eye-piece film focus force galvanometer gases gelatin glass gun-cotton H₂SO heat heliostat hydrometer induced currents induction instrument intensity iron Jefferson Medical College Leclanché cell lens lenses Leyden jar light liquid luminous machine magnet magnified Medical metal microscope mirror molecules motion needle negative object optic paper paper negatives parallel passes Philadelphia picture placed platinum polarized pole presbyopia pressure principle prints prism produced quantity rays reflected refraction resistance retina silver solid sound spectrum Spherical aberration substances surface Surgery telescope temperature Text-Book thermometer tion transmitted tube vapor velocity vessel vibrations vitreous humor voltaic volume weight wire