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Light and Sound: A Text-Book for Colleges and Technical Schools
William Suddards Franklin,Barry Macnutt
No preview available - 2015
achromatic air column astigmatism axis beam of light called canal centimeters color combination tones conical intensity conjugate consonant converging lens crystal plate curvature curve diameter direction of oscillation discussion distance diverging lens emitted equal equation eye-piece Figure focal length focal point gives Hefner Iceland spar index of refraction lamp lens system lenses luminous medium meters microscope minor scale minor triad mirror motion moving nerves Nicol prism numerical aperture object-glass Optics ordinary organ pipe oscillation overtones parallel rays particle passes photographic lens photometer plane wave point F polariscope polarized light portion principal plane prism produced ratio reflected wave represents screen sensation shown in Fig shows simple wave-train slit sound waves spectroscope spectrum spherical aberration spherical wave standard candle stationary wave-train string surface telescope theory of light tion tones transmitted transverse waves tube velocity vibration frequencies vibrations per second violet wave-length wave-train wavelet white light