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What is the Indian Regional Navigation Satellite System (IRNSS-NavIC)?

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  ✅ Why in News :  Usage of Indian Regional Navigation Satellite System(NavIC system) has increased in sectors like transportation and personal mobility. ЁЯФ╕There is also an increase in the number of NavIC enabled smart mobile phone models in the Indian market. ▪️About Indian Regional Navigation Satellite System ( IRNSS )  ✅IRNSS is an independent regional navigation satellite system developed by the Indian Space Research Organization (ISRO). ✅The main objective is to provide reliable position, navigation and timing services over India and its neighbourhood. ✅IRNSS is a regional and not a global navigation system. ✅Unlike the widely used GPS which includes 24 satellites, NavIC has 8 satellites and their range is within India and its adjoining regions extending up to 1,500 km from the country’s border. ✅Technically satellite systems with more satellites provide more accurate positioning information. However, compared to GPS which has a position accuracy of 20-30 metres, the...

Most important questions for upsc 2022

 ЁЯФ░Most important questionsЁЯФ░ ◆◆◆◆●●●●●●●●●●●◆◆◆◆ ♦️рднाрд░рддीрдп рд╕ंрд╡िрдзाрди рдХा рд╕рдмрд╕े рдмрдб़ा рд╕्рд░ोрдд рдХ्рдпा рд╣ै Ans - 1935 рдХा рднाрд░рдд рд╢ाрд╕рди рдЕрдзिрдиिрдпрдо ♦️ рдкрдЪाрдпрддी рд░ाрдЬ рд╕ंрд╕्рдеाрдУं рдХो рд╕ंрд╡ैрдзाрдиिрдХ рдоाрди्рдпрддा рд╣ेрддु рдХिрд╕ рд╕рдоिрддि рдиे рд╕िрдлाрд░िрд╢ рдХी рдеी Ans- рд▓рдХ्рд╖्рдоी рдорд▓्рд▓ рд╕िंрдШрд╡ी ♦️ 1935 рдХे рдЕрдзिрдиिрдпрдо рдХो рдХिрд╕рдиे рджाрд╕рддा рдХा рдЕрдзिрдХाрд░ рдкрдд्рд░ рдХрд╣ा Ans - рдкंрдбिрдд рдЬрд╡ाрд╣рд░рд▓ाрд▓ рдиेрд╣рд░ू ♦️ рд╕рд╡िрдзाрди рд╕рднा рдХे рд╕ंрд╡ैрдзाрдиिрдХ рд╕рд▓ाрд╣рдХाрд░ рдХौрди рдеे Ans- рд╕рд░ рдмी.рдПрди рд░ाрд╡ ♦️рд╡िрдзि рджिрд╡рд╕ рдХрдм рдордиाрдпा рдЬाрддा рд╣ै Ans - 26 рдирд╡ंрдмрд░ ♦️ рдордд्рд░िрдоंрдбрд▓ рд╢рдм्рдж рдХा рдЙрд▓्рд▓ेрдЦ рдХिрд╕ рдЕрдиुрдЪ्рдЫेрдж рдоें рд╣ै Ans - рдЕрдиुрдЪ्рдЫेрдж 352 ♦️рдкрд░рдердо рдмाрд░ рд░ाрд╖्рдЯ्рд░ीрдп рдз्рд╡рдЬ рдХрдм рдлрд╣рд░ाрдпा рдЧрдпा рдеा?  Ans. 26 рдЬрдирд╡рд░ी 1930 ♦️ рд╢िрдХ्рд╖рдХ рд╕ंрд╕्рдеाрдиों рдоें рдзाрд░्рдоिрдХ рд╢िрдХ्рд╖ा рдХा рдк्рд░рддिрдмंрдз рдХिрд╕ рдЕрдиुрдЪ्рдЫेрдж рдХे рддрд╣рдд рд▓рдЧाрдпा рдЧрдпा Ans- рдЕрдиुрдЪ्рдЫेрдж 28 ♦️ рдХांрдЧ्рд░ेрд╕ рдХे рдХिрд╕ рдЕрдзिрд╡ेрд╢рди рдоें рдкूрд░्рдг рд╕्рд╡рд░ाрдЬ рдХी рдШोрд╖рдгा рд╣ुрдИ? Ans. рд▓ाрд╣ौрд░ 1929 ♦️рдорддрджाрддा рдХी рдЖрдпु 21 рд╡рд░्рд╖ рд╕े рдШрдЯाрдХрд░ 18 рд╡рд░्рд╖ рдХिрд╕ рд╕ंрд╡िрдзाрди рд╕ंрд╢ोрдзрди рдж्рд╡ाрд░ा рдХी рдЧрдИ-  Ans. 61 рд╕ंрд╡िрдзाрди рд╕ंрд╢ोрдзрди1989 ♦️ рдбॉрдХ्рдЯрд░ рднीрдорд░ाрд╡ рдЕंрдмेрдбрдХрд░ рдХिрд╕ рдк्рд░рджेрд╢ рд╕े рд╕ंрд╡िрдзाрди рд╕рднा рдоें рд╕рджрд╕्рдп рдеे Ans - рдоुंрдмрдИ ♦️ рд░ाрд╖्рдЯ्рд░ीрдп рдз्рд╡рдЬ рдХी рдбिрдЬाрдЗрди рдХिрд╕рдиे рддैрдпाрд░ рдХी рдеी Ans – рдкिंрдЧрд▓ी рд╡ेंрдХैрдпा ♦️рдЖрдзुрдиिрдХ рднाрд░рдд рдХा рдордиु рдХिрд╕...

COFFEE-RING EFFECT

 COFFEE-RING EFFECT Researchers have given new insights on the ‘coffee-ring effect’. ✅For about two decades now, the ‘coffee ring effect’ has been known as when a drop of spilt coffee dries up, the outermost edge of the dried drop is a little darker than the centre, forming a darker ‘ring’. ✅This is caused by the outward drift of suspended coffee particles from the centre, causing a denser, darkened rim. ✅Now, researchers from Indian Institute of Technology, Madras, have shown that after reaching the rim, as the drop dries, some of the particles undergo an inward drift too. ✅This research has applications in agriculture, forensic science and even disease diagnosis. The present work has been published in the journal, Soft Matter.

Carbon Dating Method

  ЁЯФЖCarbon Dating Method ✅ The District Court in Varanasi allowed a petition seeking Carbon Dating of the structure inside the Gyanvapi mosque that the Hindu side has claimed is a ‘ Shivling ’. ▪️What is Carbon dating? ✅It is a widely-used method applied to establish the age of organic material, things that were once living.  ✅Living things have carbon in them in various forms.  ✅The dating method makes use of the fact that a particular isotope of carbon called C-14, with an atomic mass of 14, is radioactive, and decays at a rate that is well known. ✅The most abundant isotope of carbon in the atmosphere is carbon-12 or a carbon atom whose atomic mass is 12.  ✅A very small amount of carbon-14 is also present. ✅Process : Plants get their carbon through the process of photosynthesis, while animals get it mainly through food. Because plants and animals get their carbon from the atmosphere, they too acquire carbon-12 and carbon-14 isotopes in roughly the same proportion a...

рднाрд░рдд рдХे ЁЭЯ│ рдкреЬोрд╕ी рджेрд╢ рдХे рд╕ाрде рд╕ीрдоाрдУं рдХी рд▓рдо्рдмाрдИ

 ЁЯСЗЁЯСЗрднाрд░рдд рдХे ЁЭЯ│ рдкреЬोрд╕ी рджेрд╢ рдХे рд╕ाрде рд╕ीрдоाрдУं рдХी рд▓рдо्рдмाрдИ ЁЯСЗЁЯСЗ ЁЯТердмांрдЧ्рд▓ाрджेрд╢ - ЁЭЯ░ЁЭЯмЁЭЯ╡ЁЭЯ▓.ЁЭЯ│ рдХिрдоी.  ▪️(рдЕрд╕рдо, рдоेрдШाрд▓рдп, рдоिрдЬोрд░рдо, рдд्рд░िрдкुрд░ा рд╡ рдкрд╢्рдЪिрдо рдмंрдЧाрд▓)  ЁЯТердЪीрди - ЁЭЯпЁЭЯ░ЁЭЯ┤ЁЭЯ┤ рдХिрдоी.  ▪️(рдЬрдо्рдоू рдХрд╢्рдоीрд░, рд╣िрдоाрдЪрд▓ рдк्рд░рджेрд╢, рдЙрдд्рддрд░ाрдЦंрдб, рд╕िрдХ्рдХिрдо рдПंрд╡ рдЕрд░ूрдгाрдЪрд▓ рдк्рд░рджेрд╢)  ЁЯТердкाрдХिрд╕्рддाрди - ЁЭЯпЁЭЯпЁЭЯоЁЭЯп рдХिрдоी. ▪️(рдЧुрдЬрд░ाрдд, рд░ाрдЬрд╕्рдеाрди, рдкंрдЬाрдм рдПрд╡ं рдЬрдо्рдоू рдХрд╢्рдоीрд░  ЁЯТердирдкाрд▓  - ЁЭЯнЁЭЯ│ЁЭЯ▒ЁЭЯн рдХिрдоी.  ▪️(рдЙрдд्рддрд░ рдк्рд░рджेрд╢, рдмिрд╣ाрд░, рдкрд╢्рдЪिрдо рдмंрдЧाрд▓, рд╕िрдХ्рдХिрдо, рд╡ рдЙрдд्рддрд░ाрдЦंрдб  ЁЯТе рдордпांрдоाрд░ - ЁЭЯнЁЭЯ▓ЁЭЯ░ЁЭЯп рдХिрдоी. ▪️(рдЕрд░ूрдгाрдЪрд▓ рдк्рд░рджेрд╢, рдирдЧाрд▓ैंрдб, рдоिрдЬोрд░рдо, рд╡ рдордгिрдкुрд░)  ЁЯТердЕрдлрдЧाрдиिрд╕्рддाрди -ЁЭЯнЁЭЯмЁЭЯ▓ рдХिрдоी ЁЭЧгЁЭЧ╝ЁЭЧ╕ ▪️(рдЬрдо्рдоू-рдХрд╢्рдоीрд░, (рдкाрдХ рдЕрдзिрдХृрдд) ЁЯТерднрдЯाрди - ЁЭЯ▓ЁЭЯ╡ЁЭЯ╡ рдХिрдоी.  ▪️(рд╕िрдХ्рдХिрдо, рдЕрд╕рдо, рд╡ рдкрд╢्рдЪिрдо рдмंрдЧाрд▓, рдЕрд░ूрдгाрдЪрд▓ рдк्рд░рджेрд╢)

рднाрд░рдд рдХे рдк्рд░рдоुрдЦ рдорди्рджिрд░ों рдкрд░ рдорд╣рдд्рд╡рдкूрд░्рдг рдк्рд░рд╢्рдиोрдд्рддрд░

  ❣️ЁЯТРрднाрд░рдд рдХे  рдк्рд░рдоुрдЦ рдорди्рджिрд░ों рдкрд░ рдорд╣рдд्рд╡рдкूрд░्рдг рдк्рд░рд╢्рдиोрдд्рддрд░  ЁЯТР❣️ 1. рдиिрдо्рдирд▓िрдЦिрдд рдоें рд╕े рдХिрд╕ рдорди्рджिрд░ рдХा рдиिрд░्рдоाрдг рдЪрди्рджेрд▓ рд╢ाрд╕рдХों рдиे рдХрд░ाрдпा ? A.рдЦрдЬुрд░ाрд╣ो ✅✅ B.рдоिрдиाрдХ्рд╖ी C.рд╕ूрд░्рдп D.рддिрд░ुрдкрддि 2. рдХोрдгाрд░्рдХ рдорди्рджिрд░ рдХा рдиिрд░्рдоाрдг рдХिрд╕ рд╡ंрд╢ рдХे рд╢ाрд╕рдХों рдж्рд╡ाрд░ा рдХрд░ाрдпा рдЧрдпा рдеा ? A.рдЪाрд▓ुрдХ्рдп B.рд╣ोрдпрд╕рд▓ C.рдкूрд░्рд╡ी рдЧंрдЧ ✅✅ D.рд╢ुंрдЧ 3. рдЕрдоृрддрд╕рд░ рд╕्рдеिрдд рд╕्рд╡рд░्рдг рдоंрджिрд░ рдХिрд╕рдиे рдмрдиाрдпा ? A.рдЕрд░्рдЬुрди рджेрд╡ ✅✅ B.рд░ाрдорджाрд╕ C.рд╣рд░рдЧोрд╡िрди्рдж D.рддेрдЧ рдмрд╣ाрджुрд░ 4. рдХिрд╕ рдоंрджिрд░ рдХो рдж्рд░рд╡िреЬ-рдЪोрд▓ рдХрд▓ा рд╢ैрд▓ी рдХा рдЙрдд्рдХृрд╖्рдЯрддрдо рдЙрджाрд╣рд░рдг рдоाрдиा рдЬाрддा рд╣ै ? A.рдХोрд░ंрдЧрдиाрде рдоंрджिрд░ B.рдЪोрд▓ेрд╢्рд╡рд░ рдорди्рджिрд░ C.рд╡ृрд╣рджेрд╢्рд╡рд░ рдорди्рджिрд░ ✅✅ D.рдЙрдкрд░्рдпुрдХ्рдд рд╕рднी 5. рдХोрдгाрд░्рдХ рдХे рд╕ूрд░्рдп рдорди्рджिрд░ рдХा рдиिрд░्рдоाрддा рдХौрди рд╣ै ? A.рд░ाрдЬेрди्рдж्рд░ рдЪोрд▓ B.рд░ाрдЬрд░ाрдЬ рдк्рд░рдердо C.рдХृрд╖्рдгрджेрд╡ рд░ाрдп D.рдирд░рд╕िंрд╣ рджेрд╡ рдж्рд╡िрддीрдп  ✅✅ 6. рднрдЧрд╡ाрди рдирдЯрд░ाрдЬ рдХा рдк्рд░рд╕िрдж्рдз рдоंрджिрд░ рдЬिрд╕рдоे рднрд░рдд рдиाрдЯ्рдп рд╢िрд▓्рдкрдХрд▓ा рд╣ै, ____ рдоें рд╕्рдеिрдд рд╣ै ? A.рддिрд░ुрд╡рди्рдирдорд▓рдИ B.рдорджुрд░ै C.рдЪिрджंрдмрд░рдо ✅✅ D.рдоैрд╕ूрд░ 7. рд▓िंрдЧрд░ाрдЬ рдоंрджिрд░ рдХी рдиीрд╡ рдбाрд▓ी рдеी ? A.рдЬрдЬाрддि рдХेрд╕рд░ी рдиे ✅✅ B.рд▓ाрд▓ाрддेंрджु рдХेрд╕рд░ी рдиे C.рдирд░рд╕िंрд╣ рдж्рд╡िрддрдп рдиे D.рдк्рд░рддाрдк рд░ुрдж्рд░рджेрд╡ рдиे 8. рдоोрдвेрд░ा рдХा рд╕ूрд░्рдп рдоंрджिрд░ рдХिрд╕ рд░ाрдЬ्рдп рдоें рд╕्рдеिрдд рд╣ै? A. рдмिрд╣ाрд░ B.рдЧुрдЬрд░ाрдд ✅✅ C. рдУрдб़िрд╢ा D. рдмंрдЧाрд▓ 9.  (рдм...

A dangerous moment: On Vladimir Putin’s troop mobilisation

  A dangerous moment : On Vladimir Putin’s troop mobilisation   Vladimir Putin should see setbacks as evidence of the irrationality of war Russian President Vladimir Putin’ s announcement of a partial troop mobilisation marks an acknowledgement of the limits of his “special military operation” in Ukraine and a readiness to escalate the conflict in response to setbacks. His original plan was to meet his military objectives through a limited war. He had mobilised more than 1,50,000 troops and ordered a sharp thrust into Ukraine from multiple fronts on February 24, but this plan did not quite work as Ukrainian forces, backed militarily and economically by the U.S. and Europe, slowed down the enemy’s advances and made the invasion costly for the Russians. Earlier, Mr. Putin had to withdraw troops from around Kyiv and Kharkiv and focus on Ukraine’s east and south where the Russians made territorial gains. But Russia suffered its first major battlefield defeats earlier this month in...