Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 860
... Plane mirrors , 957. Images of images , 958. Parallel mirrors , 959 . Mirrors at right angles , 960. Mirrors at 60 , 961. Kaleidoscope , 962. Pepper's ghost , 963. Deviation produced by rotation of mirror , 964. Sextant , 965. Spheri ...
... Plane mirrors , 957. Images of images , 958. Parallel mirrors , 959 . Mirrors at right angles , 960. Mirrors at 60 , 961. Kaleidoscope , 962. Pepper's ghost , 963. Deviation produced by rotation of mirror , 964. Sextant , 965. Spheri ...
Página 862
... Plane of polarization , 1103. Polarization by double refraction , 1104. Explanation of double refraction in uniaxal crystals . Wave - surface for ordinary ray spherical , for extra- ordinary ray spheroidal . Extraordinary index ...
... Plane of polarization , 1103. Polarization by double refraction , 1104. Explanation of double refraction in uniaxal crystals . Wave - surface for ordinary ray spherical , for extra- ordinary ray spheroidal . Extraordinary index ...
Página 886
... plane , waves di- verging from any centre O ( Fig . 608 ) in front of it are reflected so as to diverge from a centre O ' symmetrically situated behind it , and an ear at any point M in front hears the reflected sound as if it came from ...
... plane , waves di- verging from any centre O ( Fig . 608 ) in front of it are reflected so as to diverge from a centre O ' symmetrically situated behind it , and an ear at any point M in front hears the reflected sound as if it came from ...
Página 891
... plane mirror ) of the waves which would exist in the prolongation of the tube if the obstacle were withdrawn . At ... planes or cross sections of no vibra- tion arranged at distances of half a wave - length apart . One of these nodes is ...
... plane mirror ) of the waves which would exist in the prolongation of the tube if the obstacle were withdrawn . At ... planes or cross sections of no vibra- tion arranged at distances of half a wave - length apart . One of these nodes is ...
Página 921
... planes , is an example of stationary undulation ; and the vibration of a musical string is another example . A stationary undulation may always be analysed into two component undulations equal and similar to one another , and travelling ...
... planes , is an example of stationary undulation ; and the vibration of a musical string is another example . A stationary undulation may always be analysed into two component undulations equal and similar to one another , and travelling ...
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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