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13.Nuclear Physics
13 Atoms. Nuclei and Semiconductors
The radioactive element most commonly detected in humans is
the-radioactive-element-most-commonly-detected-in-humans-is
Question: Which one of the following is not correct : ( UP PCS (pre) 1999 )
question-which-one-of-the-following-is-not-correct-up-pcs-pre-1999
Question: The difference between nuclear reactor and atom bomb is that : ( UP PCS (pre) 1999 ), ( IAS (pre) 1995 )
question-the-difference-between-nuclear-reactor-and-atom-bomb-is-that-up-pcs-pre-1999-ias-pre-1995
Question: Which statement is not associated with nuclear fission : ( Utt PCS (pre) 2016 )
question-which-statement-is-not-associated-with-nuclear-fission-utt-pcs-pre-2016
Question : Consider the following statements : In a nuclear reactor, self-sustained chain reaction is possible, because : 1. More neutrons are released in each of the fission reactions. 2. The neutrons immediately take part in the fission process. 3. The fast neutrons are slowed down by graphite. 4. Every neutron released in the fission reaction initiates further fission. Which of these statements are correct ? ( IAS (pre) 2001 )
question-consider-the-following-statements-in-a-nuclear-reactor-self-sustained-chain-reaction-is-possible-because-1-more-neutrons-are-released-in-each-of-the-fission-reactions-2-the-neutrons-immediately-take-part-in-the-fission-process-3-the-fast-neutrons-are-slowed-down-by-graphite-4-every-neutron-released-in-the-fission-reaction-initiates-further-fission-which-of-these-statements-are-correct-ias-pre-2001
Question : Source of Energy from the Sun is : ( Utt UDA/LDA (mains) 2006 )
question-source-of-energy-from-the-sun-is-utt-uda-lda-mains-2006
Question: Cyclotrons are used to accelerate : ( UP PCS (pre) 1997 )
question-cyclotrons-are-used-to-accelerate-up-pcs-pre-1997
Question: Stars obtain their energy from : 1. Nuclear fusion 2. Gravitational contraction 3. Chemical reaction 4 Nuclear fission Select your answer from the codes given below : ( UP PCS (pre) 2000 )
question-stars-obtain-their-energy-from-1-nuclear-fusion-2-gravitational-contraction-3-chemical-reaction-4-nuclear-fission-select-your-answer-from-the-codes-given-below-up-pcs-pre-2000
Question : Which one of the following is the source of renewable energy in stars ? ( UP PCS (pre) 2009 )
question-which-one-of-the-following-is-the-source-of-renewable-energy-in-stars-up-pcs-pre-2009
Question: Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not ? ( IAS (pre) 1995 )
question-which-one-of-the-following-can-be-used-to-confirm-whether-drinking-water-contains-a-gamma-emitting-isotope-or-not-ias-pre-1995
Question: The energy of Sun is released due to : ( 42nd BPSC (pre) 1997 ), (RAS/RTS (pre) 1993 )
question-the-energy-of-sun-is-released-due-to-42nd-bpsc-pre-1997-ras-rts-pre-1993
Question: One of these particles is claimed to have invented which rebut the Einstein's theory of relativity : ( UP PCS (pre) 2009 )
question-one-of-these-particles-is-claimed-to-have-invented-which-rebut-the-einstein-s-theory-of-relativity-up-pcs-pre-2009
Question : The stars receive their energy from which of the following ? ( Utt PCS (pre) 2006 )
question-the-stars-receive-their-energy-from-which-of-the-following-utt-pcs-pre-2006
Question: Consider the following statements about nuclear fusion reactors : (i) They work on the principle of fission of heavy nuclei. (ii) They usually have Tokamak design. (iii) They operate at very high temperature. Of these ( UP RO/ARO (pre) 2016 )
question-consider-the-following-statements-about-nuclear-fusion-reactors-i-they-work-on-the-principle-of-fission-of-heavy-nuclei-ii-they-usually-have-tokamak-design-iii-they-operate-at-very-high-temperature-of-these-up-ro-aro-pre-2016
Question: Read the following statement- Statement (A) : Ernest Rutherford said in Royal Society that a man will never be able to get nuclear energy. Reason (R) : He was confident that the Law of Einstein will fail and the volume will not be converted to energy. Select your answer in the code given below : ( UP PCS (pre) 1994 )
question-read-the-following-statement-statement-a-ernest-rutherford-said-in-royal-society-that-a-man-will-never-be-able-to-get-nuclear-energy-reason-r-he-was-confident-that-the-law-of-einstein-will-fail-and-the-volume-will-not-be-converted-to-energy-select-your-answer-in-the-code-given-below-up-pcs-pre-1994
Question: With reference to India, consider the following statements : 1. Monazite is a source of rare earths. 2. Monazite contains thorium. 3. Monazite occurs naturally in the entire Indian coastal sands in India. 4. In India, Government bodies only can process or export monazite. Which of the statements given above are correct ? ( IAS (pre) 2022 )
question-with-reference-to-india-consider-the-following-statements-1-monazite-is-a-source-of-rare-earths-2-monazite-contains-thorium-3-monazite-occurs-naturally-in-the-entire-indian-coastal-sands-in-india-4-in-india-government-bodies-only-can-process-or-export-monazite-which-of-the-statements-given-above-are-correct-ias-pre-2022
Question: With reference to the radioactivity, which of the following statement is/are correct ? 1. Radioactivity is a nuclear property. 2. Hydrogen bomb is prepared on the principle of nuclear fission. Select the correct answer using the codes given below. ( UP PCS (pre) 2021), ( UP RO/ARO (mains) 2016 )
question-with-reference-to-the-radioactivity-which-of-the-following-statement-is-are-correct-1-radioactivity-is-a-nuclear-property-2-hydrogen-bomb-is-prepared-on-the-principle-of-nuclear-fission-select-the-correct-answer-using-the-codes-given-below-up-pcs-pre-2021-up-ro-aro-mains-2016
Question: Radioactive element which has been found to have large reserves in India is : ( Utt PCS (pre) 2006 )
question-radioactive-element-which-has-been-found-to-have-large-reserves-in-india-is-utt-pcs-pre-2006
Question: The working principle of atom bomb is nuclear fission of uranium and the working principle of hydrogen bomb is - ( UP PCS (pre) 1994 )
question-the-working-principle-of-atom-bomb-is-nuclear-fission-of-uranium-and-the-working-principle-of-hydrogen-bomb-is-up-pcs-pre-1994
Question: The Principle of atomic bomb is based on - ( 39th BPSC (pre) 1994 )
question-the-principle-of-atomic-bomb-is-based-on-39th-bpsc-pre-1994
Question: Which of the following is used in the preparation of Nuclear bombs ? ( MP PCS (pre) 2014 )
question-which-of-the-following-is-used-in-the-preparation-of-nuclear-bombs-mp-pcs-pre-2014
Question: Which of the following is not a fuel element ? ( MP PCS (pre) 1997 )
question-which-of-the-following-is-not-a-fuel-element-mp-pcs-pre-1997
Question: Which of the following element is not included as a nuclear fuel - ( RAS/RTS (pre) 1993 )
question-which-of-the-following-element-is-not-included-as-a-nuclear-fuel-ras-rts-pre-1993
Question: Which one of the following can not be used as a nuclear fuel ? ( UP PCS (mains) 2014 )
question-which-one-of-the-following-can-not-be-used-as-a-nuclear-fuel-up-pcs-mains-2014
Question: To meet its rapidly growing energy demand some opine that India should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium ? 1. Thorium is far more abundant in nature than uranium. 2. On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium. 3. Thorium produces less harmful waste compared to uranium. Which of the statement(s) given above is/are correct ? ( IAS (pre) 2012 )
question-to-meet-its-rapidly-growing-energy-demand-some-opine-that-india-should-pursue-research-and-development-on-thorium-as-the-future-fuel-of-nuclear-energy-in-this-context-what-advantage-does-thorium-hold-over-uranium-1-thorium-is-far-more-abundant-in-nature-than-uranium-2-on-the-basis-of-per-unit-mass-of-mined-mineral-thorium-can-generate-more-energy-compared-to-natural-uranium-3-thorium-produces-less-harmful-waste-compared-to-uranium-which-of-the-statement-s-given-above-is-are-correct-ias-pre-2012
Question: Which is not used as Atomic fuel ? ( Chhattisgarh PCS (pre) 2014 )
question-which-is-not-used-as-atomic-fuel-chhattisgarh-pcs-pre-2014
Question: Identify the mineral not associated with atomic power- ( Chhattisgarh PCS (pre) 2003 )
question-identify-the-mineral-not-associated-with-atomic-power-chhattisgarh-pcs-pre-2003
Question: The important nuclear fuel available in India in abundance is : ( UP Lower Sub (pre) 2003 ), (RAS/RTS (pre) 1992 )
question-the-important-nuclear-fuel-available-in-india-in-abundance-is-up-lower-sub-pre-2003-ras-rts-pre-1992
Question: Which one of the following is India's first nuclear plant ? ( MP PCS (pre) 1992 )
question-which-one-of-the-following-is-india-s-first-nuclear-plant-mp-pcs-pre-1992
Question: Which metal can be used for producing electricity ? ( 47th BPSC (pre) 2005 )
question-which-metal-can-be-used-for-producing-electricity-47th-bpsc-pre-2005
Question: India's first atomic power station is - ( MP PCS (pre) 2008 )
question-india-s-first-atomic-power-station-is-mp-pcs-pre-2008
Question: What happens if the control rods are not used in a nuclear reactor ? ( RAS/RTS (pre) 1992 )
question-what-happens-if-the-control-rods-are-not-used-in-a-nuclear-reactor-ras-rts-pre-1992
Question: The half-life of a radioactive element is 5 years then the fraction of the radioactive substance that remains after 20 years is - ( IAS (pre) 1994 )
question-the-half-life-of-a-radioactive-element-is-5-years-then-the-fraction-of-the-radioactive-substance-that-remains-after-20-years-is-ias-pre-1994
Question: Which Uranium isotope is used in nuclear power plants to produce electricity ? ( Utt PCS (pre) 2012 )
question-which-uranium-isotope-is-used-in-nuclear-power-plants-to-produce-electricity-utt-pcs-pre-2012
Question: Radioactive substance emits- ( 40th BPSC (pre) 1995 )
question-radioactive-substance-emits-40th-bpsc-pre-1995
Question: The ultimate product of radioactive disintegration of uranium is - ( Chhattisgarh PCS (pre) 2013 )
question-the-ultimate-product-of-radioactive-disintegration-of-uranium-is-chhattisgarh-pcs-pre-2013
Question : The half-life of a radioactive substance is 10 days; it means there will be : ( RAS/RTS (pre) 2007 )
question-the-half-life-of-a-radioactive-substance-is-10-days-it-means-there-will-be-ras-rts-pre-2007
Question: Hydrogen bomb is based on the principle of- ( UP PCS (pre) 2010 ), ( 67th BPSC (pre) 2022 )
question-hydrogen-bomb-is-based-on-the-principle-of-up-pcs-pre-2010-67th-bpsc-pre-2022
Question: A radioactive substance has a half-life of four months. Three-fourth of the substance would decay in- ( IAS (pre) 2001 )
question-a-radioactive-substance-has-a-half-life-of-four-months-three-fourth-of-the-substance-would-decay-in-ias-pre-2001
Question: Which one of the following is not radioactive ? ( IAS (pre) 2001 )
question-which-one-of-the-following-is-not-radioactive-ias-pre-2001
Question: Hydrogen bomb was developed by : ( UP PCS (mains) 2015 )
question-hydrogen-bomb-was-developed-by-up-pcs-mains-2015
Question: Who is present director of 'BARC' ? ( MP PCS (pre) 2010 )
question-who-is-present-director-of-barc-mp-pcs-pre-2010
Question: Heavy water is manufactured in India at- (UP PCS (mains) 2015 )
question-heavy-water-is-manufactured-in-india-at-up-pcs-mains-2015
Question: Consider the following organizations : 1. Atomic Minerals Directorate for Research & Exploration 2. Heavy water board. 3. Indian Rare Earths Limited 4. Uranium Corporation of India Which of these is/are under the Department of Atomic Energy ? ( IAS (pre) 2001 )
question-consider-the-following-organizations-1-atomic-minerals-directorate-for-research-and-exploration-2-heavy-water-board-3-indian-rare-earths-limited-4-uranium-corporation-of-india-which-of-these-is-are-under-the-department-of-atomic-energy-ias-pre-2001
Question: What is true for Kalpakkam fast Breeder Reactor ? 1. In it, natural uranium will be used as a fuel. 2. In it, Plutonium carbide and natural uranium carbide mixture will be used as a fuel. 3. More than 200 MW atomic electricity will be produced from it. Choose the correct answer from the following alternatives. ( UP PCS (mains) 2005 )
question-what-is-true-for-kalpakkam-fast-breeder-reactor-1-in-it-natural-uranium-will-be-used-as-a-fuel-2-in-it-plutonium-carbide-and-natural-uranium-carbide-mixture-will-be-used-as-a-fuel-3-more-than-200-mw-atomic-electricity-will-be-produced-from-it-choose-the-correct-answer-from-the-following-alternatives-up-pcs-mains-2005
Question : Which one of the following coolants is used in the 'Fast Breeder Text Reactor' at Kalpakkam ? ( UP PCS (pre) 1997, UP Lower (spl) (pre) 2008, UP PCS (mains) 2010 )
question-which-one-of-the-following-coolants-is-used-in-the-fast-breeder-text-reactor-at-kalpakkam-up-pcs-pre-1997-up-lower-spl-pre-2008-up-pcs-mains-2010
Question: What are they links between Dhruva, Purnima and Cirus ? ( UP PCS (mains) 2004 )
question-what-are-they-links-between-dhruva-purnima-and-cirus-up-pcs-mains-2004
Question: Which fuel is used by Nuclear reactors in India ? ( Utt Lower Sub. (pre) 2010 )
question-which-fuel-is-used-by-nuclear-reactors-in-india-utt-lower-sub-pre-2010
Question : The fuel used in Fast Breeder Test Reactor at Kalpakkam is : ( Utt PCS (pre) 2006 )
question-the-fuel-used-in-fast-breeder-test-reactor-at-kalpakkam-is-utt-pcs-pre-2006
Question: Kalpakkam is famous- ( UP Lower Sub. (pre) 2002 )
question-kalpakkam-is-famous-up-lower-sub-pre-2002
Question: The Indira Gandhi Atomic Research Centre is located in ( UP PCS (mains) 2004 )
question-the-indira-gandhi-atomic-research-centre-is-located-in-up-pcs-mains-2004
Question: Which one of the following atomic plants of India is located in the IV Seismic Zone ? ( UP PCS (mains) 2010 )
question-which-one-of-the-following-atomic-plants-of-india-is-located-in-the-iv-seismic-zone-up-pcs-mains-2010
Question : The Nuclear Power Corporation of India is now in a position to sell "Pressurised Heavy water Reactors" (PHWRs) to other countries.' The reactors in question would be of capacity ? ( UP Lower (spl) (pre) 2008 )
question-the-nuclear-power-corporation-of-india-is-now-in-a-position-to-sell-pressurised-heavy-water-reactors-phwrs-to-other-countries-the-reactors-in-question-would-be-of-capacity-up-lower-spl-pre-2008
Question: Fast breeder reactor is a nuclear reactor which produces electricity - ( 38th BPSC (pre) 1992 )
question-fast-breeder-reactor-is-a-nuclear-reactor-which-produces-electricity-38th-bpsc-pre-1992
Question: Russia has agreed recently to construct how many units of nuclear reactors at Kudankulam in Tamil Nadu ? ( UP PCS (mains) 2009 )
question-russia-has-agreed-recently-to-construct-how-many-units-of-nuclear-reactors-at-kudankulam-in-tamil-nadu-up-pcs-mains-2009
Question: The atomic power plant which became active recently is located at : ( UP PCS (pre) 2000 )
question-the-atomic-power-plant-which-became-active-recently-is-located-at-up-pcs-pre-2000
Question: The atomic power plants are located at- Select the correct answer from the codes given below : 1. Narora 2. Ghatshila 3. Kalpakkam 4. Nangal
question-the-atomic-power-plants-are-located-at-select-the-correct-answer-from-the-codes-given-below-1-narora-2-ghatshila-3-kalpakkam-4-nangal
Question: Which of the following nuclear power plants has the highest total installed capacity ? ( UP PCS (mains) 2014 )
question-which-of-the-following-nuclear-power-plants-has-the-highest-total-installed-capacity-up-pcs-mains-2014
Question: A breeder reactor is that which - ( UP PCS (mains) 2009 )
question-a-breeder-reactor-is-that-which-up-pcs-mains-2009
Question: The function of heavy water in a nuclear reactor is to ( IAS (pre) 2011 )
question-the-function-of-heavy-water-in-a-nuclear-reactor-is-to-ias-pre-2011
Question: The percentage of nuclear energy in India's total energy generation is- ( UP Lower Sub. (pre) 2008 )
question-the-percentage-of-nuclear-energy-in-india-s-total-energy-generation-is-up-lower-sub-pre-2008
Question: The pokhran II test was conducted on- ( 43rd BPSC (pre) 1999 )
question-the-pokhran-ii-test-was-conducted-on-43rd-bpsc-pre-1999
Question: The Nuclear doctrine of India contains ( Utt PCS (pre) 2016 )
question-the-nuclear-doctrine-of-india-contains-utt-pcs-pre-2016
Question: In which one of the following locations is the International Thermonuclear Experimental Reactor (ITER) project to be built ? ( IAS (pre) 2008 )
question-in-which-one-of-the-following-locations-is-the-international-thermonuclear-experimental-reactor-iter-project-to-be-built-ias-pre-2008
Question: Consider the following statements : Assertion (A) : India's nuclear policy incorporates its unpreparedness to open its nuclear plants to international inspection. Reason (R) : India will not produce any nuclear bomb. Select your answer from the code given below : ( UP PCS (pre) 1994 )
question-consider-the-following-statements-assertion-a-india-s-nuclear-policy-incorporates-its-unpreparedness-to-open-its-nuclear-plants-to-international-inspection-reason-r-india-will-not-produce-any-nuclear-bomb-select-your-answer-from-the-code-given-below-up-pcs-pre-1994
Question: The official code name of the Pokhran nuclear test 1974, was- ( UP PCS (mains) 2009 )
question-the-official-code-name-of-the-pokhran-nuclear-test-1974-was-up-pcs-mains-2009
Question: Consider the following statements : 1. The Nuclear Security Summits are periodically held under the aegis of the United Nations. 2. The International Panel on Fissile Materials is an organ of International Atomic Energy Agency. Which of the statements given above is/are correct ? ( IAS (pre) 2017 )
question-consider-the-following-statements-1-the-nuclear-security-summits-are-periodically-held-under-the-aegis-of-the-united-nations-2-the-international-panel-on-fissile-materials-is-an-organ-of-international-atomic-energy-agency-which-of-the-statements-given-above-is-are-correct-ias-pre-2017
Question: In May, 1998 India had conducted 5 nuclear tests at Pokhran. In which state does Pokhran lie ? ( MP PCS (pre) 1998 )
question-in-may-1998-india-had-conducted-5-nuclear-tests-at-pokhran-in-which-state-does-pokhran-lie-mp-pcs-pre-1998
Question: 'Operation Shakti' - 98 is the name : ( UP PCS (pre) 1999 )
question-operation-shakti-98-is-the-name-up-pcs-pre-1999
Question: India has refused to sign the treaty on non-proliferation of nuclear weapon. ( RAS/RTS (pre) 1992 )
question-india-has-refused-to-sign-the-treaty-on-non-proliferation-of-nuclear-weapon-ras-rts-pre-1992question-india-has-refused-to-sign-the-treaty-on-non-proliferation-of-nuclear-weapon-ras-rts-pre-1992
Question: Assertion (A) : CERN (European Organization for Nuclear Research) is the world's largest particle physics Laboratory. Reason (R) : CERN is French acronym of the name of the provisional body founded 2 years before the organization came into existence. ( MP PCS (pre) 2008 )
question-assertion-a-cern-european-organization-for-nuclear-research-is-the-world-s-largest-particle-physics-laboratory-reason-r-cern-is-french-acronym-of-the-name-of-the-provisional-body-founded-2-years-before-the-organization-came-into-existence-mp-pcs-pre-2008
Question: India is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India ? ( IAS (pre) 2016 )
question-india-is-an-important-member-of-the-international-thermonuclear-experimental-reactor-if-this-experiment-succeeds-what-is-the-immediate-advantage-for-india-ias-pre-2016
Question: Recently, India signed a deal known as ' Action Plan for Prioritization and Implementation of Cooperation Areas in the Nuclear Field' with which of the following countries ? ( IAS (pre) 2019 )
question-recently-india-signed-a-deal-known-as-action-plan-for-prioritization-and-implementation-of-cooperation-areas-in-the-nuclear-field-with-which-of-the-following-countries-ias-pre-2019
Question : What is/are the consequence / consequences of a country becoming the member of the 'Nuclear Suppliers Group' ? 1. It will have access to the latest and most efficient nuclear technologies. 2. It automatically becomes a member of "The Treaty on the Non-Prolifertion of Nuclear Weapons (NPT)" . Which of the statements given above is/are correct ? ( IAS (pre) 2018 )
question-what-is-are-the-consequence-consequences-of-a-country-becoming-the-member-of-the-nuclear-suppliers-group-1-it-will-have-access-to-the-latest-and-most-efficient-nuclear-technologies-2-it-automatically-becomes-a-member-of-the-treaty-on-the-non-prolifertion-of-nuclear-weapons-npt-which-of-the-statements-given-above-is-are-correct-ias-pre-2018
Question: Which country was the first, after the ban on India was lifted by the Nuclear Suppliers Group, to sign an agreement that would allow supply of civil nuclear technology to India ? ( MP PCS (pre) 2008 )
question-which-country-was-the-first-after-the-ban-on-india-was-lifted-by-the-nuclear-suppliers-group-to-sign-an-agreement-that-would-allow-supply-of-civil-nuclear-technology-to-india-mp-pcs-pre-2008
Question: In India, why are some nuclear reactors kept under 'IAEA Safeguards' while others are not ? ( IAS (pre) 2020 )
question-in-india-why-are-some-nuclear-reactors-kept-under-iaea-safeguards-while-others-are-not-ias-pre-2020
Question: Consider the following countries : 1. China 2. France 3. India 4. Israel 5. Pakistan Which among the above are Nuclear Weapons States as recognized by the Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as Nuclear Non-Proliferation Treaty (NPT) ? ( IAS (Pre) 2015 )
question-consider-the-following-countries-1-china-2-france-3-india-4-israel-5-pakistan-which-among-the-above-are-nuclear-weapons-states-as-recognized-by-the-treaty-on-the-non-proliferation-of-nuclear-weapons-commonly-known-as-nuclear-non-proliferation-treaty-npt-ias-pre-2015
Question: Which among the following countries is not a member of Nuclear Suppliers Group ? ( MP PCS (pre) 2008 )
question-which-among-the-following-countries-is-not-a-member-of-nuclear-suppliers-group-mp-pcs-pre-2008
Question : In the Indian context, what is the implication of ratifying the 'Additional Protocol' with the 'International Atomic Energy Agency (IAEA)' ? ( IAS (pre) 2018 )
question-in-the-indian-context-what-is-the-implication-of-ratifying-the-additional-protocol-with-the-international-atomic-energy-agency-iaea-ias-pre-2018
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