Elementary Treatise on Natural Philosophy, Volumen4D. Appleton, 1891 |
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Página 862
... Law of sines , 1081 . Reflection , 1082. Newtonian explanation of refraction . Foucault's crucial experi- ment , 1083. Principle of least time . Application to reflection and refraction . More exact statement of the principle ...
... Law of sines , 1081 . Reflection , 1082. Newtonian explanation of refraction . Foucault's crucial experi- ment , 1083. Principle of least time . Application to reflection and refraction . More exact statement of the principle ...
Página 934
... law with the experi- mental fact , that a trained ear can detect the presence of harmonics in all but the very ... sines , all its ordinates increasing or diminishing in the same pro- portion , as the string moves . HARMONICS . 935 ...
... law with the experi- mental fact , that a trained ear can detect the presence of harmonics in all but the very ... sines , all its ordinates increasing or diminishing in the same pro- portion , as the string moves . HARMONICS . 935 ...
Página 994
... law is that these perpendiculars R ' P ' , SP , will have a constant ratio ; or the sines of the angles of incidence and refraction are in a con- stant ratio . It is often referred to as the law of sines . The angle by which a ray is ...
... law is that these perpendiculars R ' P ' , SP , will have a constant ratio ; or the sines of the angles of incidence and refraction are in a con- stant ratio . It is often referred to as the law of sines . The angle by which a ray is ...
Página 995
Augustin Privat-Deschanel Joseph David Everett. LAW OF SINES . 995 occurs at emergence , since the emergent beam is normal to the sur- faces of the liquid and glass ; the position of the arm accordingly indicates the direction of the ...
Augustin Privat-Deschanel Joseph David Everett. LAW OF SINES . 995 occurs at emergence , since the emergent beam is normal to the sur- faces of the liquid and glass ; the position of the arm accordingly indicates the direction of the ...
Página 996
... sine of the angle of incidence to the sine of the angle of refraction when a ray passes from one medium into another ... law of sines , that when the 1 The index of refraction is always greater for violet than for red ( see Chap . lxxii ...
... sine of the angle of incidence to the sine of the angle of refraction when a ray passes from one medium into another ... law of sines , that when the 1 The index of refraction is always greater for violet than for red ( see Chap . lxxii ...
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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