ratio of size of atom to size of nucleus

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ratio of size of atom to size of nucleus

an atomic nucleus or even a whole atom can not, because of the Why is sending so few tanks to Ukraine considered significant? Rutherford gold foil experiment discovered that most parts of an atom are empty and its centre has a positively charged nucleus. This means that the nucleus has a diameter 10,000 times smaller than the atom. How do you estimate the size of the nucleus? Assume that a typical atom has a linear dimension of about 0.1 nm and that a typical nuclear dimension is about 1 fm. R = R 0 A 1 3 Where R 0 = 1.210 -15 m. From the formula, we can conclude that the volume of the nucleus, which is proportional to R 3, is proportional to A (mass number). Why is my motivation letter not successful? It does not store any personal data. To do this, he decided to carry out an experiment and made fast-moving particles (alpha particles ) fall on a thin gold foil. An atom of oxygen has a diameter of 7.4 x 10-11 m. Give an order of magnitude estimate of the size of an oxygen atom. How do I submit an offer to buy an expired domain? contains almost all of the mass of the atom, and takes up almost The atomic size or atomic radius is of the order of 107cm or 109m or 1 nanometer(nm). Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The sciences which study the composition and characteristics of a nucleus are called nuclear physics and nuclear chemistry. The centre of an atom is positively charged, and almost all of an atoms mass is contained in the central part called the nucleus. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. How do we know that the nucleus isn't a quark-gluon plasma? Connect and share knowledge within a single location that is structured and easy to search. The order of magnitude of nuclear energy is 1MeV whereas the energy of atomic energy levels is of the order 1eV. Since the number of particles that got slightly deflected was very few, it was concluded that the charge of the atom occupied a tiny space. Where was the Dayton peace agreement signed? The order of magnitude of nuclear energy is 1MeV whereas the energy of atomic energy levels is of the order 1eV. Each atom has an order of magnitude of 10 -10. The attractive force between the nucleus and the electrons is called the Coulomb force. Because the electrical force is much weaker than the nuclear force, an atom is almost 100,000 times larger than the nucleus. What causes hot things to glow, and at what temperature? none of its volume. The cookies is used to store the user consent for the cookies in the category "Necessary". Typically the nucleus contains more than 99.9% of the mass of the atom. How big is the nucleus compared to an atom? The nucleus of an atom is about 10-15 m in size; this means it is about 10-5 (or 1/100,000) of the size of the whole atom. Watch Now in App Similar questions The figure of merit for such reactions is $Q^2 = -q \cdot q$, and in the range from about $1$--$8\text{+ GeV}^2$ (the upper limit is not yet experimentally known) the cross-section for this (per target proton) is a constant times the cross-section for the free reaction $p(e,e'p)$. Hence,The radius of atomic nucleus is of the order 10-13 cm. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. Hence, the ratio of radius of atom to that of nucleus = 10 1510 10 = 105. 6 What is the Order of magnitude of atoms and molecules? Similarly, the box representing the nucleus is provided by the strong nuclear force between protons and neutrons that hold them all in place. In the formula you provide, the mass $m_a$ that appears really refers just to the mass of the particle in the box, which for the atom is the electron. Use this info and the particle in the box model to make an order of magnitude estimate of the ratio $$\frac{\text{size of atom}}{\text{size of nucleus}}$$. But why is this so? about 10-15 m How to explain $E=mc^2$ mass defect in fission/fusion? Assuming the atom and the nucleus to be spherical. The Atom consists of electrons bound to a nucleus by electrical forces. What is the order of magnitude of the diameter of the earth? It melts at 3727 C. The electronic configuration of C is (1s)2(2s)2(2p)2, and the atomic radius is 0.0914 nm. Use this info and the particle in the box model to make an order of magnitude estimate of the ratio size of atom size of nucleus What is the approximate size of a carbon atom? In nuclei, nucleons exists in nuclear energy levels and in atoms, electrons exist in atomic energy levels. These cookies track visitors across websites and collect information to provide customized ads. 4 10 6 m We know that the ratio of the radius of the earth and the radius of the nucleus, R e R n = 10 5 Step 2: Radius of the nucleus: Since there was a complete bouncing off of a few particles from the gold foil, the atom of the gold foil's positive charge was concentrated in a small volume within the atom. In this case, "size of atom" really means "size of the box that is holding the electron in its place". Vedantu LIVE Online Master Classes is an incredibly personalized tutoring platform for you, while you are staying at your home. At the atomic level, is heat conduction simply radiation? Atomic Radius - Basic Introduction - Periodic Table Trends, Chemistry, Atomic Size | Atoms and Molecules | Don't Memorise, This Animation Shows You How Small Atoms Really Are. The cookie is used to store the user consent for the cookies in the category "Performance". Most of the part inside an atom is empty space with its centre having positively charged particles called protons and neutral particles called neutrons. Medium. about as much larger as a cathedral is compared to a housefly. Classified as a transition metal, Cadmium is a solid at room temperature. Is the nuclear mass density constant for different nuclei and shape of the nucleus. The positive charge of the nucleus comes from protons in it. A good comparison of the nucleus to the atom is like a pea in the middle of a racetrack. The size (volume) of the nucleus is tiny compared to the size The Verified by Toppr. 105. What is the Order of magnitude of a molecule of dodecane? This problem has been solved! It is given by the following equation: F = k * (q1 * q2) / (r^2) In this . Is there scale by size of all discovered particles? In nuclei, nucleons exists in nuclear energy levels and in atoms, electrons exist in atomic energy levels. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". What is the order of atomic nucleus? You also have the option to opt-out of these cookies. I suspect that any better model would not give a nice neat physical picture of the nucleus, the way we have a nice neat physical picture of the atom. Use this info and the particle in the box model to make an order of magnitude estimate of the ratio $$\frac{\text{size of atom}}{\text{size of nucleus}}$$. The size of an atom is primarily determined by the strength of the attractive force between the nucleus and the electrons. It might be so large as to not be able to be measured because it is impossible to traverse it in the time that the universe will exist! cloud). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. In this case, "size of atom" really means "size of the box that is holding the electron in its place". (b) If atom is represented by planet earth Re=6.4106 m, estimate the size of the nucleus. This cookie is set by GDPR Cookie Consent plugin. Since most particles passed through the gold foil, most of the atom is an empty space. The cookie is used to store the user consent for the cookies in the category "Other. rev2023.1.18.43176. 4 What is the size and shape of the nucleus? What is installed and uninstalled thrust? The size of the hydrogen atom is about 23. Why was the Potsdam Conference important? Its value is 5.291 772 109 03(80) 1011 m. The size of a silicon nucleus is of the order of 0.117 nanometers. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. "quark" is more like a verb than a noun. How many orders of magnitude bigger is an atom than its nucleus? Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. (1.672 10 -27 Kg.). Shouldn't the mass of a typical atom also include the mass of the nucleus, along with the mass of the electron? A good comparison of the nucleus to the atom is like a pea in the middle of a racetrack. Thanks for contributing an answer to Physics Stack Exchange! The "box" is provided by the confining electromagnetic force exerted by the nucleus on the electron. The constant is called the "nuclear transparency" and expresses the probability that the scattered proton re-interacts before leaving the nucleus. J.J. Thompson had proposed the model of an atom, but it was Ernest Rutherfords model that was finally accepted as the correct nuclear model. In what way do teachers influence the success of a student? How can a star emit light if it is in Plasma state? 3 What is the approximate size of an atom? It does not store any personal data. size of a conventional object. Mostly the shape of the nucleus is spherical or oblong. As an example, carbon has three isotopes in nature: Carbon-12, Carbon-13, and Carbon-14. particles are much heavier compared to protons; hence he was expecting them to deflect only slightly by the gold atoms subatomic particles. The "box" is provided by the confining electromagnetic force exerted by the nucleus on the electron. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Approximate size of the nucleus is given by, RA=1. compared to that of the nucleus. This is almost all the Did Jefferson say the constitution should be rewritten? An average dimension for the radius of an atom is 1.0108cm, and the average radius of the nucleus is 1.01013cm Assuming spherical shape: We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. If two atoms of the same elements share the same number of protons but differ in several neutrons, they form isotopes. As a result of the EUs General Data Protection Regulation (GDPR). The diameter of the nucleus is in the range of 1.70 fm (1.701015 m) for hydrogen (the diameter of a single proton) to about 11.7 fm for uranium. MathJax reference. **Size: **Atoms have an average radius of about 0.1 nm. Order of magnitude estimation for the size of atoms and small molecules Here are some typical atomic diameters: The diameters are slightly different, but are all about 10-10 m. The size of these atoms is said to have an order of magnitude of 10-10. The smallest nuclei are approximately 1 m in diameter and are found in yeast cells. Unstable nuclei undergo radioactive decay to transform into more stable daughter nuclei. neutrons that combine to form atomic nuclei are composed of quarks Protons have mass 0f 1.0078 a.m.u. What Rutherford Concluded From This Experiment, Rutherford Proposed The Following Nuclear Model of An Atom Based on His Experiment, NCERT Solutions for Class 12 Business Studies, NCERT Solutions for Class 11 Business Studies, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 9 Social Science, NCERT Solutions for Class 8 Social Science, CBSE Previous Year Question Papers Class 12, CBSE Previous Year Question Papers Class 10. protons and neutrons that make up that atom. Rutherford concluded: "The radius of the nucleus must be much smaller than the radius of the atom, and the ratio is about 10 4. Is it OK to ask the professor I am applying to for a recommendation letter? These cookies ensure basic functionalities and security features of the website, anonymously. How was the size of an atom's nucleus discovered? This cookie is set by GDPR Cookie Consent plugin. University of Illinois at Urbana-Champaign, Volume measurement of irregularly shaped objects. The best answers are voted up and rise to the top, Not the answer you're looking for? His discovery that they were some 10,000 times smaller than the atoms that con- tained them was due to the remarkable way that alpha particles scatter from metal foils. Ratio of Size of Atom to Size of Nucleus Ratio of Size of Atom to Size of Nucleus homework-and-exercises nuclear-physics 5,743 In this case, "size of atom" really means "size of the box that is holding the electron in its place". Not only that, but the protons and That translates into the fact that the nucleus takes up "ERROR: column "a" does not exist" when referencing column alias. Thanks. 256431fm=5. So the way I approached this was to consider $$\frac{E_a}{E_n}=10^{-6}\Rightarrow \frac{\frac{h^2}{8m_aL_a^2}}{\frac{h^2}{8m_nL_n^2}}=\frac{m_nL_n^2}{m_aL_a^2}=10^{-6}\Rightarrow \frac{L_a}{L_n}=\sqrt{10^6\cdot m_n/m_a }.$$The mass of the nucleus we assume to be 1u but what about the mass of the atom? (volume) of the atom (defined by the extent of the electron See for an explanation. J.J.Thompson carried out his cathode ray tubes experiment and found out that all atoms contain negatively charged particles called electrons. Size of atom is 104 times greater than size of nucleus. To learn more, see our tips on writing great answers. These protons and neutrons constitute the nucleus of the atom. The proton count of a nucleus determines it as an atom of a specific element. The nucleus of an atom is less than \ (\frac {1} {10,000}\) the size of an atom.. Protons and neutrons weigh much more than the tiny electrons; hence almost all the mass of a nucleus is centred around the nucleus. This cookie is set by GDPR Cookie Consent plugin. An average dimension for the radius of an atom is 1.010 8 cm, and the average radius of the nucleus is 1.010 13 cmAssuming spherical shape:Ratio = R nucleus3R atom3 =10 15. For heavier atoms, they would extend to about 36 times farther than Pluto. A more manageable measure is of the observable universe. This cookie is set by GDPR Cookie Consent plugin. This cookie is set by GDPR Cookie Consent plugin. The number of protons and neutrons are called nucleons, and the mass of a nucleus is A time the mass of the nucleon (A is the number of nucleons in the atom). We also use third-party cookies that help us analyze and understand how you use this website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The nucleus of an atom is 10,000 times smaller than the atom. The smallest molecule is the diatomic hydrogen (H2), with a bond length of 0.74 . Ratio of the size of atom to that of nucleus = 4 3R3 4 3r3 = (105r)3 r3 =1015 (b) If the atom is represented by the planet earth, Then the radius of the nucleus would be, rn = Re 105 rn = 6.4106 105 =64 m Suggest Corrections Download BYJU'S The Learning App Download the app to view unlimited solutions on app. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Atom has a huge size compared to the nucleus. Isotopes are not distinguished chemically as all of them have the same number of electrons. The site owner may have set restrictions that prevent you from accessing the site. Give an order of magnitude estimate for the length of a molecule of dodecane. So, option C is correct. How many orders of magnitude greater is the radius of the atom as compared to that of the nucleus? What is the diameter of an atom of oxygen? Cadmium is a chemical element with symbol Cd and atomic number 48. What is the most inappropriate Harry Potter scene? In the answers at the end of the book it says that we take $m_n = m_e$. the volume of the atom. They're a long way away from being able to actually simulate a whole nucleus. [Physics] How do we know that the nucleus isnt a quark-gluon plasma, [Physics] How to explain $E=mc^2$ mass defect in fission/fusion. C. 5 fm. Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Rutherford wanted a very thin sheet for his experiment, and gold foil could be pounded into sheets of only 0.00004 cm thickness. In the Plum pudding model given by Thompson, an atom had negatively charged electrons meshed inside a positively charged soup.. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The nucleus is also called atomic nucleus and comes from the Latin word nucleus which is another word for nux (it means kernel or nut). Why did Rutherford choose gold for his experiment? These cookies ensure basic functionalities and security features of the website, anonymously. Learn about this topic in these articles: measuring nuclear sizes is the femtometre (fm), which equals 1015 metre. The diameter of an atom is of the order of 108 cm.. Requested URL: byjus.com/physics/size-of-the-nucleus/, User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36. (10-15 m is typical for the smaller nuclei; larger ones go up to about 10 times that.). Why we see black colour when we close our eyes. The cookies is used to store the user consent for the cookies in the category "Necessary". Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. In the formula you provide, the mass $m_a$ that appears really refers just to the mass of the particle in the box, which for the atom is the electron. mass of the atom, and these protons and neutrons are bound very Please keep your answers simple since I am only doing A-Level physics. [a] Which is almost equal to around 1015 m of the size of the atom. Bohr radius. The thickness of this gold foil was around that of 1000 atoms. From what I've heard (from people who know this business), the current state of the art in lattice QCD computations is calculating the mass of the proton with some accuracy. Solution: The radius of an atom of any element is of the order of 10 10 metre and that of a nucleus is of the order of 1 metre (1 fermi). In this article, we will look into the theory behind the size of the nucleus and see what the Rutherford gold foil experiment proved. This cookie is set by GDPR Cookie Consent plugin. Question 37 The ratio of the radii of hydrogen atom and its nucleus is 105. All these isotopes have 6 protons, but the number of neutrons in them is 6, 7, and 8. Incredibly small. what is the impact factor of "npj Precision Oncology". So the way I approached this was to consider $$\frac{E_a}{E_n}=10^{-6}\Rightarrow \frac{\frac{h^2}{8m_aL_a^2}}{\frac{h^2}{8m_nL_n^2}}=\frac{m_nL_n^2}{m_aL_a^2}=10^{-6}\Rightarrow \frac{L_a}{L_n}=\sqrt{10^6\cdot m_n/m_a }.$$The mass of the nucleus we assume to be 1u but what about the mass of the atom? Think of the sun as the nucleus and the oort cloud (past pluto) What's the physical difference between a convective heater and an infrared heater? Hence, we can say that, the size of the nucleus is very much smaller than the whole atom. The End Size Of A Nucleus Size Of An Atom/ Atomic Diametre A Nucleus' diameter varies on the amount of protons and neutrons. The first orbital of H is represented by : = 1(a 01)3/2e r/a 0, where a 0 is Bohr's radius. 1. The difference in the number of neutrons of these isotopes gives them different atomic masses. The covalent radius of a chlorine atom, for example, is half the distance between the nuclei of the atoms in a Cl2 molecule. Protons are located in the nucleus. And that atom's volume is really large Use MathJax to format equations. 1 What is the approximate size of nucleus and atom? Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Is it realistic for an actor to act in four movies in six months? Solution. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". A nucleus size is much smaller than the atoms size. that are probably not things. My professor who doesn't let me use my phone to read the textbook online in while I'm in class. The order of magnitude of the diameter of the earth is (Diameter of the earth is 1.28 10^7 m ). The "box" is provided by the confining electromagnetic force exerted by the nucleus on the electron. The Bohr radius ( a0) is a physical constant, approximately equal to the most probable distance between the nucleus and the electron in a hydrogen atom in its ground state. Rutherford first measured the sizes of nuclei by scattering alpha particles from a gold foil. The cookie is used to store the user consent for the cookies in the category "Analytics". An atom approximately an angstrom in size, 0.1 nanometer, or 1 x 10^-10m The size of the universe is rather more difficult to define. A larger chunk of fast-moving alpha particles passed straight through the gold foil without any deflection. -11 Size of a Neutron as where the electron orbitals start. Another reason for choosing gold foil was its elevated malleability. Protons and neutrons are bound together to form a nucleus by the nuclear force. We might say that the nucleus The "box" is provided by the confining electromagnetic force exerted by the nucleus on the electron. Right. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 4 What is the order of magnitude of the diameter of the earth? In particular, I wouldn't expect to see a model that predicts concentric wavefunctions for nucleons, the way quantum mechanics describes electrons. The table of permselectivity for different substances contains examples. I can't give you a real answer but I figured this may be better than nothing: Because the interaction energies inside the nucleus are very low, and when we perform experiments on nucleons at those energies they behave primarily as discrete particles. The size of atomic nucleus is quite small in comparison to the atoms size. Why eating dinner as a family is important? A big part of what they do at Jefferson laboratory is to search for the change between nucleon--meson degrees of freedom (as reasonably well described by quantum hadrondynamics) and quark--gluon degrees of freedom (as described by quantum chromodynamics); but even the on-set of QCD dominated behavior does not correspond to quark--gluon plasma which occurs at much higher energies. This website uses cookies to improve your experience while you navigate through the website. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Please don't use computer-generated text for questions or answers on Physics. 2 How do you estimate the size of the nucleus? 5 How do you estimate the size of an atom? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The proton carries a positive charge of 1.6 10 -19 C. Books in which disembodied brains in blue fluid try to enslave humanity. What is the minimum count of signatures and keys in OP_CHECKMULTISIG? The hydrogen nucleus is the smallest (1.75 * 10-15 m) since it has a single proton. The nucleus is normally around 5-10 m in diameter in many multicellular organisms, and the largest organelle in the cell. R = 105r Volume of the atom = 43R3 =43(105r)3 Volume of the nucleus = 43r3 Ratio of the size of atom to that of nucleus = 43R343r3=(105r)3r3=1015 (b) If the atom is represented by the planet earth, Then the radius of the nucleus would be, rn=Re105 rn=6.4106105=64 m, The ratio of the radii of the atom to the nucleus is, The ratio of the radii of hydrogen atom and its nucleus is, NCERT Solutions Class 12 Business Studies, NCERT Solutions Class 12 Accountancy Part 1, NCERT Solutions Class 12 Accountancy Part 2, NCERT Solutions Class 11 Business Studies, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 10 Maths Chapter 1, NCERT Solutions for Class 10 Maths Chapter 2, NCERT Solutions for Class 10 Maths Chapter 3, NCERT Solutions for Class 10 Maths Chapter 4, NCERT Solutions for Class 10 Maths Chapter 5, NCERT Solutions for Class 10 Maths Chapter 6, NCERT Solutions for Class 10 Maths Chapter 7, NCERT Solutions for Class 10 Maths Chapter 8, NCERT Solutions for Class 10 Maths Chapter 9, NCERT Solutions for Class 10 Maths Chapter 10, NCERT Solutions for Class 10 Maths Chapter 11, NCERT Solutions for Class 10 Maths Chapter 12, NCERT Solutions for Class 10 Maths Chapter 13, NCERT Solutions for Class 10 Maths Chapter 14, NCERT Solutions for Class 10 Maths Chapter 15, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 4, NCERT Solutions for Class 10 Science Chapter 5, NCERT Solutions for Class 10 Science Chapter 6, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, NCERT Solutions For Class 9 Social Science, NCERT Solutions For Class 9 Maths Chapter 1, NCERT Solutions For Class 9 Maths Chapter 2, NCERT Solutions For Class 9 Maths Chapter 3, NCERT Solutions For Class 9 Maths Chapter 4, NCERT Solutions For Class 9 Maths Chapter 5, NCERT Solutions For Class 9 Maths Chapter 6, NCERT Solutions For Class 9 Maths Chapter 7, NCERT Solutions For Class 9 Maths Chapter 8, NCERT Solutions For Class 9 Maths Chapter 9, NCERT Solutions For Class 9 Maths Chapter 10, NCERT Solutions For Class 9 Maths Chapter 11, NCERT Solutions For Class 9 Maths Chapter 12, NCERT Solutions For Class 9 Maths Chapter 13, NCERT Solutions For Class 9 Maths Chapter 14, NCERT Solutions For Class 9 Maths Chapter 15, NCERT Solutions for Class 9 Science Chapter 1, NCERT Solutions for Class 9 Science Chapter 2, NCERT Solutions for Class 9 Science Chapter 3, NCERT Solutions for Class 9 Science Chapter 4, NCERT Solutions for Class 9 Science Chapter 5, NCERT Solutions for Class 9 Science Chapter 6, NCERT Solutions for Class 9 Science Chapter 7, NCERT Solutions for Class 9 Science Chapter 8, NCERT Solutions for Class 9 Science Chapter 9, NCERT Solutions for Class 9 Science Chapter 10, NCERT Solutions for Class 9 Science Chapter 11, NCERT Solutions for Class 9 Science Chapter 12, NCERT Solutions for Class 9 Science Chapter 13, NCERT Solutions for Class 9 Science Chapter 14, NCERT Solutions for Class 9 Science Chapter 15, NCERT Solutions for Class 8 Social Science, NCERT Solutions for Class 7 Social Science, NCERT Solutions For Class 6 Social Science, CBSE Previous Year Question Papers Class 10, CBSE Previous Year Question Papers Class 12, JEE Main 2022 Question Paper Live Discussion. 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