Light, Visible and Invisible |
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Page 56
... slit ( Fig . 42 ) is an important example . Light of the wave length λ , transmitted through a very distant slit - like opening , falls upon a second narrow slit of the width a . A lens L is placed behind the second slit . Now a ...
... slit ( Fig . 42 ) is an important example . Light of the wave length λ , transmitted through a very distant slit - like opening , falls upon a second narrow slit of the width a . A lens L is placed behind the second slit . Now a ...
Page 73
... slit images appear on the screen - one for each packet ; the undeviated slit image will be flanked by four or five slit images on either side . The farther deviated slit images are less bright than the less deviated ones . We can best ...
... slit images appear on the screen - one for each packet ; the undeviated slit image will be flanked by four or five slit images on either side . The farther deviated slit images are less bright than the less deviated ones . We can best ...
Page 189
... Slit and Interference The diffraction of X rays at a slit ( Fig . 133 ) is like- wise quite a recent accomplishment . The experiment is difficult because the diffracting slit must be exceptionally narrow . Lloyd's mirror experiment has ...
... Slit and Interference The diffraction of X rays at a slit ( Fig . 133 ) is like- wise quite a recent accomplishment . The experiment is difficult because the diffracting slit must be exceptionally narrow . Lloyd's mirror experiment has ...
Contents
CONTENTS | 9 |
Light Waves a Useful Fiction | 20 |
The Speed of Light | 32 |
Copyright | |
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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 energy excited experiment Fraunhofer lines frequency glass plate grating green homogeneous inch infrared light instance intensity interference fringes interferometer invisible lamp layer lens light rays light source light waves magnetic field measurement mercury metal mica microscope mirror object observed opaque optical ordinary light oscillators parallel particles path difference photograph plane polarized light polarizing angle prism produce propagation refractive index right angles scattered screen short-waved shown in Figure shows slit sound source of light space spectral lines spectrum speed of light spot substance surface telescope tion total reflection transmitted transparent transverse waves tube ultraviolet velocity vibrations visible light water waves wave length wave theory white light X rays yellow Zeeman effect