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इकाइयाँ, माप और गति, दिशा प्रकाशन द्वारा : जेईई मेन और उन्नत परीक्षा हेतु पीडीऍफ़ बुक | Units, Measurements and Motion by Disha Publication : For JEE Main and Advanced Exam PDF Book

इकाइयाँ, माप और गति, दिशा प्रकाशन द्वारा : जेईई मेन और उन्नत परीक्षा हेतु पीडीऍफ़ बुक | Units, Measurements and Motion by Disha Publication : For JEE Main and Advanced Exam PDF Book


Units-Measurements-and-Motion-by-Disha-Publication-For-JEE-Main-and-Advanced-Exam-PDF-Book


Name of Book :  Units, Measurements and Motion / इकाइयाँ, माप और गति 

Hope This Units, Measurements and Motion Book will Step up you to Succeed / आशा करते हैं इकाइयाँ, माप और गति पुस्तक आपके कदम सफलता की ओर ले जायगी

Language of Book : English

Size of Ebook : 13.5 MB

Total pages in ebook : 206

Ebook Downloading Status  : Best 
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Description about eBook : DEFINITIONS OF SI UNITS

  • Metre (m) : One metre defined as the length of the path travelled by light in vacuum in 1/(299, 792,458) of a second. (1983).
  • Kilogram (kg) : One kilogram is the mass of prototype [a certain platinum-iridium cylinder] preserved at the International Bureau of Weights and Measures, at Severs, near Paris. (1889).
  • Second (s) : One second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of  the cesium-133 atom. (1967).
  • Ampere (A) : One ampere is that constant current which , if maintained in two straight parallel conductors of infinite length, of neglegible circular cross-section, and placed 1 metre apart in vacuum would produce between these conductors a force equal to 2 × 10–7 newton per metre of length. (1946).
  • Kelvin (K) : One Kelvin is the fraction 1/(273.16) of the thermodynamic temperature of the triple point of water. (1967).
  • Candela (Cd) : One candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity of 1/683 watt per steradian in that direction.
  • Mole (mol) : One mole is that amount of substance which contains as many elementary entities as there are atoms in 0.012 kg of carbon-12 isotope. The entities may be atoms, molecules, ions etc.............


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