Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 873
... travelled from A to A ,, while the plate was moving from a " to a ' . At intervening points between A and A1 , the layers will have various amounts of compression corre- sponding to the different positions of the plate in its forward ...
... travelled from A to A ,, while the plate was moving from a " to a ' . At intervening points between A and A1 , the layers will have various amounts of compression corre- sponding to the different positions of the plate in its forward ...
Página 874
... travelled while the vibrating plate was moving from its most backward to its most advanced position , and back again ... travelling a wave - length . Thus , if the plate be one leg of a common A tuning - fork , making 435 complete ...
... travelled while the vibrating plate was moving from its most backward to its most advanced position , and back again ... travelling a wave - length . Thus , if the plate be one leg of a common A tuning - fork , making 435 complete ...
Página 884
... travelling this dis- tance through air , at the temperature of the experiment ( 11 ° C. ) , is 2.8 seconds . The time of transmission through the metal was there- fore 3 of a second , which is at the rate of 3170 metres per second . It ...
... travelling this dis- tance through air , at the temperature of the experiment ( 11 ° C. ) , is 2.8 seconds . The time of transmission through the metal was there- fore 3 of a second , which is at the rate of 3170 metres per second . It ...
Página 888
... travelled first over the distance OA ( Fig . 611 ) from him to the reflecting body , and then back from A to O. Supposing five syllables to be pronounced in a second , and taking the velocity of sound as 1100 feet per second , a ...
... travelled first over the distance OA ( Fig . 611 ) from him to the reflecting body , and then back from A to O. Supposing five syllables to be pronounced in a second , and taking the velocity of sound as 1100 feet per second , a ...
Página 891
... travelling in opposite directions ; for example , between a direct and a reflected sys- tem . When waves proceeding along a tube meet a rigid obstacle , form- ing a cross section of the tube , they are reflected directly back again ...
... travelling in opposite directions ; for example , between a direct and a reflected sys- tem . When waves proceeding along a tube meet a rigid obstacle , form- ing a cross section of the tube , they are reflected directly back again ...
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Términos y frases comunes
achromatic analyser angle of incidence beam body bright lines called centimetres centre coincidence colours concave mirror conjugate foci convex convex lens crystal curvature denote diameter direction distance employed equal experiment eye-piece flame focal length frequency of vibration fundamental note glass harmonics Hence Iceland-spar incident ray index of refraction interval inverted law of sines lens lenses luminous point magnifying power medium metres minimum deviation nearly node normal number of vibrations object object-glass oblique observer obtained octave optical ordinary parallel particles pencil perpendicular pipe pitch placed plane mirror plate polarization portion position principal axis principal focus prism produced propagation radius rarefaction ratio reflected rays refrangibility represented retina rotation screen seen side slit solar spectra spectrum spherical string subtends surface telescope tion tone traversing tube undulation velocity of sound vertical vibrations vibrations per second violet virtual image visual angle wave-front wave-length waves