Light, Visible and Invisible |
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Page 51
... sodium - for in- stance , table salt - is introduced into a dull flame , sodium vapor forms . The flame takes on an intense yellow color . Their violent collisions excite the sodium atoms to the point of glowing , and yellow light of an ...
... sodium - for in- stance , table salt - is introduced into a dull flame , sodium vapor forms . The flame takes on an intense yellow color . Their violent collisions excite the sodium atoms to the point of glowing , and yellow light of an ...
Page 53
... sodium light are spaced at approximately 100 centimeter . Consequently , the wave length of the 0.0058 100 cm . = 58 100,000 sodium light is : λ = cm . , or 580 mp , or 5800 Ångstrom units — a very small magnitude . ( The exact value of ...
... sodium light are spaced at approximately 100 centimeter . Consequently , the wave length of the 0.0058 100 cm . = 58 100,000 sodium light is : λ = cm . , or 580 mp , or 5800 Ångstrom units — a very small magnitude . ( The exact value of ...
Page 171
... sodium is made to traverse nonluminous sodium vapor , it will likewise lose a great deal of its intensity . If white light is used , the loss becomes apparent in the yellow band , at the place corresponding to the wave length of the ...
... sodium is made to traverse nonluminous sodium vapor , it will likewise lose a great deal of its intensity . If white light is used , the loss becomes apparent in the yellow band , at the place corresponding to the wave length of the ...
Contents
CONTENTS | 9 |
Light Waves a Useful Fiction | 20 |
The Speed of Light | 32 |
Copyright | |
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Common terms and phrases
amplitude atoms axis bands beam blue bright carbon disulfide color crystal dark deviated diameter diffraction direction disk distance Doppler effect double refraction double star electric field electric waves elementary waves emitted experiment Fraunhofer lines frequency glass plate grating green homogeneous inch incidence infrared light instance interference fringes interferometer invisible lamp layer lens light rays light source light waves magnetic field measurement metal mica microscope mirror object observed opaque optical ordinary light oscillators parallel particles path difference phase photograph plane polarized light polarizing angle prism produce propagation refractive index right angles scattered screen short-waved shown in Figure shows slit sodium sound source of light space spectral lines spectrum speed of light spot substance surface telescope tion total reflection transmitted transparent transverse waves tube ultraviolet vapor velocity vibrations visible light water waves wave length wave theory white light X rays yellow Zeeman effect