Category:Wp/mag/एसआइ मूल इकाई
| नाम | चिह्न | माप | परिभाषा | ऐतिहासिक मूल/औचित्य |
|---|---|---|---|---|
| मीटर | m | लम्बाई | लम्बाईके इकाई बराबर हे: प्रकाश द्वारा वनिर्वातमे एक सेकेण्डके 1⁄२९,९७,९२,४५८मा भागमे तय कैल गेल दूरीके । बराबर १०० cm (लगभग ३९.३७ इञ्च/३ फुट ३.३७ इञ्च) परिभाषित: १७मा सिजिपिएम (१९८३) सङ्कल्प १, सिआर ९७ |
पृथ्वीके भूमध्य रेखासे उत्तरी ध्रुवके पेरिससे होवैत न्यूनतम दूरीके 1⁄10,000,000मा भाग । |
| किलोग्राम | kg | भार | The unit of mass is equal to the mass of the international prototype kilogram (a platinum-iridium cylinder) kept at the Bureau International des Poids et Mesures (BIPM), Sèvres, Paris (1st CGPM (1889), CR 34-38). Note that the kilogram is the only base unit with a prefix. See the kilogram article for an alternative definition. | The mass of one litre of water. Kilogram was originally named "grave" and symbolized G. The gram is defined as a derived unit, equal to 1⁄1000 of a kilogram; prefixes such as mega are applied to the gram, not the kg; e.g. Gg, not Mkg. It is also the only unit still defined by a physical prototype instead of a measurable natural phenomenon. |
| सेकेण्ड | s | समय | समयके इकाई ०K के तापमान पर सीजियम-१३३ परमाणुके जमीनी स्थितिके दु अतिसूक्ष्म स्तरके बीच सङ्क्रमणके अनुरूप विकिरणके ठीक ९,१९२,६३१,७७० अवधिके अवधि हे । परिभाषित: १३मा सिजिपिएम (१९६७-१९६८) सङ्कल्प १, सिआर १०३ |
दिनके २४ घण्टमे विभाजित कैल गेलहे, प्रत्येक घण्टाके ६० मिनटमे विभाजित कैल गेलहे, प्रत्येक मिनटके ६० सेकेण्डमे । एक सेकेण्ड दिनके 1⁄24 × 60 × 60 होवहे |
| एम्पीयर | A | विद्युत धारा | The ampere is the unit of electric current. The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible 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. | |
| केल्विन | K | तापमान | केल्विन, प्रतीक K, थर्मोडायनामिक तापमानके एसआइ इकाई हे । बोल्ट्जमैन स्थिराङ्क k के निश्चित सङ्ख्यात्मक मानके 1.380649×10−23 के रूपमे परिभाषित कैल गेलहे, जखनि इकाई J⋅K−1 मे व्यक्त कैल गेलहे, जे कि kg⋅m2⋅s−2⋅K−1 के बराबर हे, जन्ने किलोग्राम, मीटर आउ सेकेण्डके h, c आउ ΔνCs के सन्दर्भमे परिभाषित कैल गेलहे । | १.The unit of thermodynamic temperature (or absolute temperature) is the fraction 1⁄273.16 (exactly) of the thermodynamic temperature at the triple point of water. Defined by: 13th CGPM (1967) Resolution 4, CR 104२.Historically, the Celsius scale was used before the kelvin. 1 degree Celsius (or degree centigrade) = 1⁄100 of the difference between the boiling and freezing points of water at sea level. The Kelvin scale uses the degree Celsius for its unit increment. |
| मोल | mol | पदार्थ या द्रव्यके मात्रा | A mole is the quantity of substance that contains the same number of elementary entities (atoms, molecules, ions, electrons or particles, depending on the substance) as there are atoms in 0.012 kilograms of pure carbon-12; this number (NA) is approximately equal to 6.0221415(10) × 1023 mol-1 (2002 CODATA). | one gram per atomic mass unit |
| केण्डेला | cd | प्रकाशीय तीव्रता | The unit of luminous intensity 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 in that direction of 1⁄683 watts per steradian. Defined by: 16th CGPM (1979) Resolution 3, CR 100 |
the candlepower |
Pages in category "Wp/mag/एसआइ मूल इकाई"
The following 4 pages are in this category, out of 4 total.