30 May 2018 – The Hindu Editorial News Paper Analysis – [UPSC/SSC/IBPS] Current affairs - Videos

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  1. Follow Dr Gaurav Garg on Facebook – https://www.facebook.com/gauravgargeducation

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    UPSC/IAS past papers questions – https://goo.gl/eqSWHC

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    SSC CGL + IBPS Quantitative tricks – https://goo.gl/4BBEXs

    English Vocabulary – https://goo.gl/G9e04H

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    Error spotting / Sentence correction https://goo.gl/6RbdjC

    Static GK complete- https://goo.gl/kB0uAo

    Complete GK + Current Affairs for all exams- https://goo.gl/MKEoLy

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  2. Where Does the Nuclear Energy Come From?
    • When the uranium atom is split, some of the energy that held it together called binding energy is released as radiation in the form of heat. Therefore, the total mass does decrease a tiny bit during the reaction. Thus the energy released can be calculated by using the mass of fuel spent by using Einstein equation E=MC2.

    – Considering the nuclear and heat transfer properties of various possible coolants, Sodium has been universally accepted as the coolant for Fast Breeder Reactors. In Thermal reactors water is used as a coolant.

    Why India Prefers Fast Breeders:
    • A fast breeder reactor (FBR) breeds more fuel than it consumes that is it produces more plutonium than it consumes while generating power. For a uranium scarce country like India, it is an attractive technology. Plutonium produced in the thermal reactors as spent fuel is ideally suitable as the fuel material for use in the FBR due to its high fission neutron yield.
    • Since the number of neutrons produced in plutonium fission is high, it helps to produce more plutonium from uranium (U238) used as a blanket surrounding the fuel core of the FBR.
    • FBR also consumes less uranium and that too very effectively. While the thermal reactors exploit only 0.6 percent uranium, a FBR utilizes 70-75 per cent of it. Thus, it leaves less radioactive waste to dispose of. In fact, many scientists in India prefer FBRs for the same reason.

    ADVANTAGES AND DISADVANTAGES OF NUCLEAR FISSION ENERGY
    Nuclear power plants have three main advantages over fossil-fuel plants.

    1. Once built, a nuclear plant can be less expensive to operate than a fossil-fuel plant, mainly because a nuclear plant uses a much smaller volume of fuel.

    2. Uranium, unlike fossil fuels, releases no chemical or solid pollutants into the air during use.

    3. They do not emit CO2 and hence, do not contribute to global warming and climate change.

    However, nuclear power plants have three major disadvantages. These disadvantages have slowed the development of nuclear energy in some countries.

    1. Nuclear plants cost more to build than fossil-fuel plants.

    2. Because of the need to assure that hazardous amounts of radioactive materials are not released, nuclear plants must meet certain government regulations that fossil-fuel plants do not have to meet. For example, a nuclear plant must satisfy the government that it can quickly and automatically deal with any kind of emergency.

    3. Used nuclear fuel produces dangerous radiation long after it has been removed from the reactor. As a result, safe disposal of nuclear waste presents a challenge.

    Please refer to this article. I found it very useful
    https://www.scientificamerican.com/article/how-do-fast-breeder-react/

  3. 🙏🙏good afternoon veer sir🙏🙏
    🗺️. Aaj ka map question
    🌿 बुल्गारिया दक्षिण-पूर्व यूरोप में स्थित देश है, जिसकी राजधानी सोफ़िया है। देश की सीमाएं उत्तर में रोमानिया से, पश्चिम में सर्बिया और मेसेडोनिया से, दक्षिण में ग्रीस और तुर्की से मिलती हैं। पूर्व में देश की सीमाएं काला सागर निर्धारित करती है। कला और तकनीक के अलावा राजनैतिक दृष्टि से भी बुल्गारिया का वजूद पाँचवीं सदी से नजर आने लगता है। पहले बुल्गारियन साम्राज्य (632/681 – 1018) ने न केवल बाल्कन क्षेत्र बल्कि पूरे पूर्वी यूरोप को अनेक तरह से प्रभावित किया। बुल्गारियन साम्राज्य के पतन के बाद इसे ओटोमन शासन के अधीन कर दिया। 1877-78 में हुए रुस-तुर्की युद्ध ने बुल्गारिया राज्य को पुन: स्थापित करने में मदद की। द्वितीय विश्व युद्ध के बाद बुल्गारिया साम्यवादी राज्य और पूर्वी ब्लाक का हिस्सा बन गया। 1989 में क्रांति के बाद 1990 में साम्यवादियों का सत्ता से एकाधिकार समाप्त हो गया और देश संसदीय गणराज्य के रूप में आगे बढ़ने लगा। यह देश 2004 से नाटो का और 2007 से यूरोपियन यूनियन का सदस्य है।
    🌿
    राजधानी
    और सबसे बडा़ नगर -. सोफिया
    42°41′N 23°19′E
    राजभाषा. -. बुल्गारियन

  4. NOTE>>>Need to increase the no. of question which u ask and discuss daily upto 3 to 5…And while u dicuss the article plz ask the related question at the same moment which you use to do in jan feb session… U need to see ur own video of jan or feb to revive the same theme… Simply translating the stuff wont fascinate much…. Thanks.

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