| R. G. Liptai - 1975 - 342 sider
...given in the following paragraphs: A2.12.1 metre — The metre is the length equal to I 650 763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the levels** 2p,0 and 5d» of the krypton-86 atom. (adopted at IIthCGPM I960) A2.12.2 kilogram — The kilogram... | |
| Chester Hall Page, Paul Vigoureux - 1975 - 248 sider
...1th CGPM on October 14, 1960, in the following terms: "The metre is the length equal to 1 650 763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the levels** 2pi0and 5d3 of the krypton-86 atom."5 5 The energy levels of the krypton-86 atom which occur in this... | |
| Sir Charles William Oatley - 1976 - 262 sider
...units of length, mass and time are defined as follows. The metre is the length equal to 1 650763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the levels** 2p10 and 5ds of the krypton-86 atom. Distances of the order of a metre can be measured in terms of... | |
| James R. Wertz - 1978 - 858 sider
...for example, NBS Special Publication 330 [NBS, 1974]): The metre is the length equal to 1 650 763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the levels** 2p|0 and 5d5 of the krypton-86 atom. The kilogram is the mass of the international prototype of the... | |
| N. N. Bhargava, N. N. Bhargava S. C. Gupta D. C. Kulshreshtha - 1984 - 490 sider
...mole moi [mol] Luminous intensity candela cd W Length: The metre is the length equal to 1 650 760.73 **wavelengths, in vacuum, of the radiation corresponding to the transition between the levels** 2pl° and 5ds of the krypton-86 atom. Mass: The kilogram is equal to the mass of the international... | |
| S. Dogra - 1984 - 674 sider
...According to SI, the unit for distance is 'metre (m)', defined as the length equal to 1 650 763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the levels** 2p,0 and 5d6 of the krypton-86 atom. The SI unit of area is the square metre (m2). Land is often measured... | |
| C Venkatramaiah - 1995 - 1063 sider
...quantity. The base units of SI System are as follows: Length The metre is the length equal to 1,650,763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the levels** 2pl° and 5cf of the Krypton-86 atom. Mass The Kilogram is the unit of mass; it is equal to the mass... | |
| James W. Robinson - 1991 - 944 sider
...abrogated as the international standard of length, and the meter was redefined as equal to 1 650 763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the** 2p, 0 and 5d 5 levels of the krypton-86 atom. ‘ Since thefl the wavelength of this orange-red line... | |
| 1992 - 56 sider
...adopt a natural and indestructible standard, decides 1. The meter is the length equal to 1 650 763.73 **wavelengths in vacuum of the radiation corresponding to the transition between the levels** 2pw and 5d5 of the krypton 86 atom.* 2. The definition of the meter in force since 1889, based on the... | |
| Frank A. Paine, Heather Y. Paine - 1992 - 497 sider
...whilst the metre was defined by an International Conference in October 1960 as 'equal to 1650763.73 **wavelengths, in vacuum, of the radiation corresponding to the transition between the levels** 2p10 and 5d5 of the krypton-86 atom'. This can be determined to an accuracy of one part in 108. Thus,... | |
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