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" ... that the intensity of light varies inversely as the square of the distance. "
Report of the Committee of Council on Education (England and Wales), with ... - 480. lappuse
autors: Great Britain. Council on Education - 1848
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Annals of Philosophy, 9. sējums;25. sējums

1825 - 506 lapas
...opaque bodies ; that light expands in the same manner as heat the substances which absorb it ; and that the intensity of light varies inversely as the square of the distance. Mr. Ritchie's photometer, however, differs essentially from that of Prof. Leslie. Its delicacy...
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Annals of Philosophy, 9. sējums;25. sējums

1825 - 506 lapas
...opaque bodies ; that light expands in the same manner as heat the substances which absorb it ; and that the intensity of light varies inversely as the square of the distance. Mr. Ritchie's photometer, however, differs essentially from that of Prof. Leslie. Its delicacy...
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The Edinburgh Journal of Science, 2. sējums

1825 - 616 lapas
...through opaque bodies ; that light expands in the same manner as heat the substances that absorb it; and that the intensity of light varies inversely as the square of the distance. The Photometer shown in Plate IV. Fig. 10, consists of two broad flat cylinders, A, B, placed...
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Minutes ...: Correspondence, Financial Statements, Etc., and ..., 2. sējums

Great Britain. Committee on Education - 1848 - 606 lapas
...compensation pendulum, and explain it. Section 3. 1. Show that the intensity of light varies inversely as the square of the distance between the luminous...Explain what is meant by the refraction of light, and fcive illustrations of it. 3. Show that the effect of a concave mirror is to render parallel rays convergent....
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Solutions to the questions of the general examination at Easter, 1848 ...

J. Goodall, W. Hammond - 1848 - 390 lapas
...'scapement ? 3. Describe any one of the forms of the compensation pendulum, and explain it. Sections. 1. Show that the intensity of light varies inversely as the square of the distance between the luminous and the illuminated body. If the intensity of the light of a candle falling,...
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Descriptive and General Catalogue of Philosophical Apparatus and Chemical ...

Bland & Long - 1854 - 220 lapas
...the peculiar phenomena attendant on long and short sight £3 13s. 6d. and 550 Apparatus to illustrate that the intensity of light varies inversely as the square of the distance. It consists of a mahogany vertical plane, with a small aperture in the centre, through which...
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Arts and Sciences: Or, Fourth Division of "The English Encyclopedia", 8. sējums

Charles Knight - 1868 - 552 lapas
...of disturbance the coefficient of vibration varies inversely as the distance. But experiment shows that the intensity of light varies inversely as the square of the distance, and we are thus led in a perfectly independent manner to the same conclusion. If the interfering...
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The English Cyclopaedia

1868 - 548 lapas
...of disturbance the coefficient of vibration varies inversely as the distance. But experiment shows that the intensity of light varies inversely as the square of the distance, and we are thus led in a perfectly independent manner to the same conclusion. If the interfering...
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Elements of algebra

Robert Wallace - 1870 - 164 lapas
...Find, on the line which joins them, the point which will be equally illuminated by each, admitting that the intensity of light varies inversely as the square of the distance. Ans. 45 inches from the large light and 27 from less light, or 180 from large and 108 from...
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The Elements of Acoustics, Light, and Heat

John Charles Buckmaster - 1871 - 210 lapas
...the distance the light is one-fourth the Fig. 24. intensity. From this experiment we deduce the law, that the intensity of light varies inversely as the square of the distance. (Exercise IV.) Shadows and Penumbrse.-ln Fig. 25 Fig. 25. luminous rays to proceed from a...
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