Essentials of physicsW.B. Saunders, 1896 - 319 pages |
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Page 168
... lengths of the spectra will vary . Some substances have a greater dispersive - i . e . refractive power - than others . Flint glass makes a spectrum of double the length that crown glass does . Spectra from artificial lights rarely ...
... lengths of the spectra will vary . Some substances have a greater dispersive - i . e . refractive power - than others . Flint glass makes a spectrum of double the length that crown glass does . Spectra from artificial lights rarely ...
Page 207
... length ; only for a length , as a H ; and this is the condensed wave . Let other lengths be taken equal to a H , and when the first layer of wave a H comes to rest , its motion is communicated to the first layer of wave H H ' , and so ...
... length ; only for a length , as a H ; and this is the condensed wave . Let other lengths be taken equal to a H , and when the first layer of wave a H comes to rest , its motion is communicated to the first layer of wave H H ' , and so ...
Page 214
... length determined ? Sound travels 1125 ft . per sec . If a sounding body only made one vibration per second , its wave - length would be 1125 ft .; if two , its wave - length would be of 1125 - i . e . wave - length = No . of vibrations ...
... length determined ? Sound travels 1125 ft . per sec . If a sounding body only made one vibration per second , its wave - length would be 1125 ft .; if two , its wave - length would be of 1125 - i . e . wave - length = No . of vibrations ...
Contents
BOOK I | 17 |
The Attractions of Matter | 26 |
Matter Force and Motion | 33 |
37 other sections not shown
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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