 MATHEMATICS

 CHAPTER NAME LOCATION ERROR Trigonometric Ratios, Functions and Identities Page 422, Q. 17 Extra 2 + 2cos4x Functions, Limits, Continuity and Differentiability Page 1279, Q. 55 Solution is wrong (Answer is correct) Complex Numbers Page 70, Q. 73 Question is wrong Complex Numbers Page 57, Q. 27 Solution is wrong (Answer is correct) Complex Numbers Page 72, Q. 34 Option (c) is correct Logarithms and Partial Fractions Page 29, Q. 1 Solution is wrong (Answer is correct) Set Theory & Relations Page 14, Q. 51 Option (d) is correct Set Theory & Relations Page 14, Q. 53 Option (c) & (d) are correct Complex Numbers Page 89, Q. 13 Option (b) & (d) are correct Complex Numbers Page 92, Q. 52 Option (a) & (b) are correct Complex Numbers Page 120, Q. 49 Option (a), (b) & (c) are correct Progressions Page 187, Q. 22 Option (a) & (c) are correct Progressions Page 204, Q. 5 Option (b) & (d) are correct Quadratic Equations and Inequations Page 78, Q. 78 Option (a) is correct Quadratic Equations and Inequations Page 235, Q. 39 Correction in question Quadratic Equations and Inequations Page 242, Q. 2 Option (c) is correct Permutations and Combinations Page 310, Q. 20 Correction in question Permutations and Combinations Page 312, Q. 39 All options are wrong Binomial Theorem and Mathematical Induction Page 354, Q. 24 Correction in question & solution Binomial Theorem and Mathematical Induction Page 368, Q. 51 Wrong Answer Binomial Theorem and Mathematical Induction Page 368, Q. 57 Wrong Answer Probability Page 1780, Q. 21 Option (b) is correct, Given solution is correct Probability Page 1782, Q. 42 Option (b) is correct, Given solution is correct Probability Page 1783, Q. 52 Option (c) is correct, Given solution is correct Circle and System of Circles Page 712, Q. 62 Correct option is (4) Circle and System of Circles Page 710, Q. 46 Correct option is (d) Differentiation and Applications of Derivatives Page 1382, Q. 21 Printing Mistake in Question Vector Algebra Page 1045, Q. 31 Option (a) is correct Vector Algebra Page 1025, Q. 61 Printing Mistake in Question Co-ordinate Geometry of Three Dimensions Page 1099, Q. 3 Option (c) is correct Vector Algebra Page 1081, Q. 48 Solution given in Q. 49 Vector Algebra Page 1081, Q. 49 Solution given in Q. 48 Functions, Limits, Continuity and Differentiability Page 1289, Q. 178 Option (b) is correct Functions, Limits, Continuity and Differentiability Page 1281, Q. 82 Correct answer is 3/4

BIOLOGY

 CHAPTER NAME LOCATION ERROR The Living World Page 15, Q. 31 Correct option is (d) Structural Organisation in Animal Page 517, Q. 14 Correct option is (a) Structural Organisation in Animal Page 519, Q. 47 Correct option is (d) Biomolecules Page 632, Q. 27 Correct option is (c) Morphology of Flowering Plants Page 373, Q. 10 Correct option is (c) Morphology of Flowering Plants Page 374, Q. 40 Correct option is (d) Cell: The Unit of Life Page 558, Q. 15 Correct option is (b) Cell: The Unit of Life Page 563, Q. 27 Correct option is (c) Cell: The Unit of Life Page 572, Q. 18 Correct option is (b) Cell: The Unit of Life Page 573, Q. 31 Correct option is (d) Cell: The Unit of Life Page 564, Q. 17 Correct option is (b) Cell Cycle and Cell Division Page 659, Q. 1 Correct option is (a) Cell Cycle and Cell Division Page 663, Q. 84 Correct option is (a) Animal Kingdom Page 249, Q. 16 Correct option is (c) Animal Kingdom Page 250, Q. 27 Correct option is (d) Animal Kingdom Page 253, Q. 17 Correct option is (a) Animal Kingdom Page 254, Q. 62 Correct option is (d) Animal Kingdom Page 256, Q. 41 Correct option is (a) Animal Kingdom Page 259, Q. 92 Correct option is (c) Animal Kingdom Page 261, Q. 41 Correct option is (a) Transport in Plants Page 702, Q. 29 Correct option is (b) Morphology of flowering Plant Page 376, Q. 14 Correct option is (a,c) Morphology of flowering Plant Page 379, Q. 15 Correct option is (c) Morphology of flowering Plants Page 379, Q. 17 Correct option is (a) Morphology of flowering Plants Page 395, Q. 11 Correct option is (a,b,c,d) Morphology of flowering Plants Page 402, Q. 114 Correct option is (a) Structural Organization in Animals Page 512,  Q. 1 Correct option is (c) Transport in Plants Page 697,  Q. 4 Correct option is (a) Transport in Plants Page 697,  Q. 9 Correct option is (d) Biological Classification Page 63, Q. 38 Correct option is (d) Biological Classification Page 63, Q. 39 Correct option is (c) Biological Classification Page 66, Q. 16 Correct option is (d) Biological Classification Page 74,  Q. 29 Correct option is (c) Biological Classification Page 75,  Q. 19 Correct option is (d) Biological Classification Page 87,  Q. 67 Correct option is (d) Plant kingdom Page 168, Q. 10 Correct option is (a) Mineral Nutrition Page 745, Q. 7 Correct option is (c) Structural Organization in Animals Page 503, Q. 42 Correct Option is (c), Sol given in USS is Correct. Structural Organization in Animals Page 502, Q, 24 Question is wrong. Animal Kingdom Page 303, Q, 91 Correct option is (d) Locomotion and Movement Page 1077, Q, 12 Correct option is (e) Sexual Reproduction in Flowering Plants Page 1241, Q.51 Correct option is (d) Sexual Reproduction in Flowering Plants Page 1241, Q.44 Correct option is (a) Sexual Reproduction in Flowering Plants Page 1249, Q.39 Correct option is (b) Sexual Reproduction in Flowering Plants Page 1253, Q.43 Correct option is (a) Sexual Reproduction in Flowering Plants Page 1250, Q.7 Correct option is (d) Sexual Reproduction in Flowering Plants Page 1256, Q.43 Correct option is (c) Human Reproduction Page 1296, Q.62 Correct option is (b) Human Reproduction Page 1303,Q.38 Correct option is (b) Human Reproduction Page 1305, Q.1 Correct option is (d) Human Reproduction Page 1306, Q.14 Correct option is (a) Human Reproduction Page 1308, Q.56 Correct option is (b) Human Reproduction Page 1311, Q.12 Correct option is(a) Human Reproduction Page 1314, Q.4 Correct option is (a) Reproductive Health Page 1340, Q.1 Correct option is (c) Principle of Inheritance and Variation Page 1379, Q.57 Correct option is(d) Principle of Inheritance and Variation Page 1380, Q.62 Correct option is(a) Principle of Inheritance and Variation Page 1390, Q.43 Spelling mistake in question.The given word  is"CAREER", it should be" CARRIER". Principle of Inheritance and Variation Page 1392, Q.93 Correct option is (c) Principle of Inheritance and Variation Page 1393, Q.103 Correct option is (b) Principle of Inheritance and Variation Page 1397, Q.30 Correct option is (d) Principle of Inheritance and Variation Page 1398, Q.49 Correct option is (d) Organism and Population Page 1765, Q.13 Correct option is (d) Organism and Population Page 1769, Q. 21 Correct option is (d) Biotechnology and its Applications Page 1751, Q.84 Correct option is (b) Biotechnology Processes And Principles Q.31 Correct option is (b) Biotechnology Processes And Principles Q.109 Correct option is (c) Biotechnology Processes And Principles Q.30 Option D should be Genetic & environment approval committee Microbes in Human Welfare Page 1692, Q.2 Correct option is (d) Strategies for enhancement in food production Page 1647, Q.4 Correct option is (b) Strategies for enhancement in food production Page 1653, Q.27 Correct option is (a) Strategies for enhancement in food production Page 1656, Q.28 Correct option is (b) Strategies for enhancement in food production Page 1656, Q.1 Correct option is (a) Strategies for enhancement in food production Page 1657, Q.9 Correct option is (a) Strategies for enhancement in food production Page 1657, Q.13 Correct option is (b) Strategies for enhancement in food production Page 1659, Q.9 Correct option is (d) Human Health and Diseases Page 1598, Q.67 Correct option is (b) Human Health and Diseases Page 1605, Q.29 Correct option is (c) Human Health and Diseases Page 1610, Q.27 Correct option is (b) Evolution, Origin of Life Q.6 Correct option is (b) Evolution, Organic Evolution and Speciation Q.50 Correct option is (b) Evolution, Organic Evolution and Speciation Q.65 Correct option is (e) Evolution, Organic Evolution and Speciation Q.73 Correct option is (d) Evolution, Organic Evolution and Speciation Q.75 Correct option is (a) Evolution, Organic Evolution and Speciation Q.111 Correct option is (b) Evolution, Organic Evolution and Speciation Q.68 Correct option is (a) Evolution, Organic Evolution and Speciation Q.26 Correct option is (c) Molecular Basis of Inheritance, Nucleic Acid Q.41 Correct option is (d) Molecular Basis of Inheritance, Nucleic Acid Q.60 Correct option is (b) Molecular Basis of Inheritance, DNA Replication Q.35 Correct option is (d) Molecular Basis of Inheritance, DNA Replication Q.38 Correct option is (e) Molecular Basis of Inheritance, DNA Replication Q.39 Correct option is (a) Molecular Basis of Inheritance, DNA Replication Q.40 Correct option is (b) Molecular Basis of Inheritance, DNA Replication Q.41 Correct option is (d) Molecular Basis of Inheritance, DNA Replication Q.42 Correct option is (b) Molecular Basis of Inheritance, Nucleic Acid Transcription Q.5 Correct option is (c) Molecular Basis of Inheritance, Gene Regulation Q.14 Correct option is (d) Molecular Basis of Inheritance, Gene Regulation Q.30 Correct option is (b) Molecular Basis of Inheritance, Gene Regulation Q.31 Correct option is (d) Molecular Basis of Inheritance, Gene Regulation Q.60 Correct option is (c) Molecular Basis of Inheritance, Gene Regulation Q.68 Correct option is (c)

CHEMISTRY NEET

 CHAPTER NAME LOCATION ERROR Structure of Atom Page 56, Q. 15 Wrong question & solution Structure of Atom Page 57, Q. 25 Option (a) is correct Structure of Atom Page 92, Q. 29 Answer is correct but given solution is wrong Structure of Atom Page 94, Q. 26 Option (b) & (d) are correct Structure of Atom Page 94, Q. 28 Option (a) or (b) is correct Structure of Atom Page 95, Q. 61 Option (c) or (d) is correct Structure of Atom Page 95, Q. 65 Option (a) is correct Structure of Atom Page 97, Q. 94 Option (a) is correct Structure of Atom Page 97, Q. 115 Option (d) is correct Structure of Atom Page 77, Q. 129 Option (c) is correct Structure of Atom Page 92, Q. 28 Option (d) is correct The p-Block Elements (Nitrogen, Oxygen, Halogen and Noble Family) Page 1224, Q. 24 Option (b) is correct Classification of Elements and Periodicity in Properties Page 134, Q. 28 None of the options (F

PHYSICS NEET

 CHAPTER NAME LOCATION ERROR Units, Dimensions and Measurement Page 60, Q. 30 Correct answer is option (c) Units, Dimensions and Measurement Page 66, Q. 104 Correct answer is option (b) Units, Dimensions and Measurement Page 67, Q. 119 Correct answer is option (b) Units, Dimensions and Measurement Page 58, Q. 5 Correct answer is option (b) Motion in One Dimension Page 97, Q. 118 Correct answer is option (c) Motion in One Dimension Page 117, Q. 53 Correct answer is option (c) Motion in Two Dimension Page 173, Q. 9 Correct answer is option (a) Newton's Laws of Motion Page 211, Q. 11 Correct answer is option (d) Newton's Laws of Motion Page 204, Q. 2 Correct answer is option (d) Work, Energy, Power and Collision Page 282, Q.45 Correct answer is option (a) Rotational Motion Page 345, Q. 24 Correct answer is option (a) Rotational Motion Page 349, Q. 32 Correct answer is option (a) Thermodynamics QUESTIONS Download Question here http://bit.ly/2xJRJqN Thermometry, Thermal Expansion and Calorimetry Page 537, Q. 9 Correct answer is option (d) Kinetic Theory of Gases Page 577, Q. 8 Correct answer is option (a) Elasticity Page 458, Q. 58 Correct answer is option (a) Surface Tension Page 482, Q. 17 Correct answer is option (a) Fluid Mechanics Page 512, Q. 17 Correct answer is option (b) Current Electricity Page 1019, Q. 58 Correct answer is option (a) Current Electricity Page 1022, Q. 106 Correct answer is option (d) Elasticity Page 460, Q. 3 Correct answer is option (b) Current Electricity Page 1018, Q. 41 Correct answer is option (d) Magnetic Effect of Current Page 1110, Q. 57 Correct answer is option (c) Simple Harmonic Motion Page 671, Q.16 Correct answer is option (a) Electromagnetic induction Page 1180 & 1202 , Q.28 Question and Solution is wrongAt the end of question write: about:Write the attached solutionCorrect answer is option (b) Electromagnetic induction Page 1200, Q.15 Correct answer is option (a) Alternating Current Page 1233, Q.100 Question is incomplete. Question needs to be replaced. Alternating Current Page 1248, Q.114 Correct answer is option (b) Alternating Current Page 1237, Q.155 Correct answer is option (a) Electron, Photon Photoelectric Effect Page 1292, Q. 25 Correct answer is option  (a). Ray Optics Page 1447, Q.21 Correct answer is option (b) Ray Optics Page 1456, Q.73 Correct answer is option (d) Wave Optics Page 1538, Q.48 Correct answer is option (b)Solution needs to be changed.Instead of =6.99=7 write =6.08=6 Wave Optics Page 1547, Q.103 Correct answer is option (b) Thermodynamics Page ix, Q.12 Correct answer is option (c) Rotational Motion Page 339, Q. 37 Question is incomplete. Needs to be changed. Gravitation Page 405, Q.64 In option (a) make the line on left more curved. Work, Energy, Power and Collision Page 277, Q.107 Option (a) and (c) are the same.Change option as shown in attachment. Magnetic Effect of Current Page 1103, Q. 94 Correct answer is option (a) Simple Harmonic Motion Page 712, Q.31 Correction in solution:Instead of 0.03 Sec write 0.30 sec. Alternating Current Page 1233, Q.100 Question is incomplete in book.Question needs to be changed. Electronics Page 1408, Q. 38 Error in question: Instead of  collector supply voltage write  current gain. Electronics Page 1414, Q.39 Error in question and Solution.Kindly change them as shown in attachment.  Correct answer is option (c) Wave Optics Page 1537, Q.39 Correct answer is option (d) Wave Optics Page 1547, Q.103 Correct answer is option (b) Alternating Current Page 1224, Q.22 Correct answer is option (b) Thermodynamics Page 610, Q.21 Correct answer is option (b) Thermodynamics Page 612, Q.32 Correction in the question:In option (b) write: Correction  in the Solution:Change key: Correct option is (b)Delete the last line of the solution. Work, Energy, Power and Collision Page 274, Q.88 Correct answer is option (b)Change the solution as shown in the attachment. Work, Energy, Power and Collision Page 278, Q.17 Correct answer is option (c)Correction in the solution:Write solution from the given attachment. Motion in one dimension Page 92, Q.62 Correct answer is option  (d).Correction in solution: Motion in one dimension Page 100, Q.1 Correct answer is option  (b). Correction  in Solution: Write from attachment. Magnetic Effect of Current Page 1076, Q.57 Correct answer is option (c) Electrostatics Page 901, Q.73 Correction in the solution:Use small m, instead of Capital M.At the end of solution write:m1/m2 = √3 = 1.7Correct option is (a) Electrostatics Page 924, Q.3 Correct answer is option (b) Current Electricity Page 996, Q.27 Diagram is missing in this Question.Use attached diagram. Thermodynamics Page (xx), Q.34 Correct answer is option (c) Newton's Laws of Motion Page 223, Q. 40 Diagram is missing in the question. Use the attached diagram. Rotational Motion Page 356, Q.35 Correct answer is option (a)Correction in the solution: Simple Harmonic Motion Page 711, Q.14 Correct answer is option (a). Rotational Motion Page 334, Q.54 Correct answer is option (a)Correction in the solution:First use the given image Then write the following solution: Rotational Motion Page 353, Q.64 The question is incomplete.Complete the question using the given attachment. Rotational Motion Page 355, Q.33 Correction in Question: Write in option (d) 1470 J Ray Optics Page 1450, Q.28 Answer Key and Solution is wrong. Correct answer is option (b). Units, Dimensions and Measurement Page 47, Q. 50 Correction in Question: Correction in Solution: Units, Dimensions and Measurement Page 48, Q. 60 Correction in the question: Correction in the solution: Correct answer  is option (d) Magnetism Page 1139, Q. 68 Correct answer is option (a). Magnetic Effect of current Page 1107, Q. 2 Change key: Correct answer is option (d)Correction in the solution:Instead of ĵ write -ĵ. Magnetic Effect of Current Page 1121, Q. 129 Solution is wrong.Write attached solution.Correct answer is option (c). CHEMISTRY JEE

 CHAPTER NAME LOCATION ERROR Structure of Atom Page 107, Q. 28 Option (d) is correct Classification of Elements and Periodicity in Properties Page 159, Q. 28 None of the options (F

PHYSICS JEE

 CHAPTER NAME LOCATION ERROR Thermodynamics QUESTIONS Download Question here http://bit.ly/2xJRJqN Units, Dimensions and Measurement Page 63, Q. 30 Change Key: Correct answer is option (c)Solution is Correct Units, Dimensions and Measurement Page 69, Q. 104 Change Key: Correct answer is option (b)Solution is Correct Units, Dimensions and Measurement Page 70, Q. 119 Change Key:  Correct answer is option (b)Solution is Correct. Motion in One Dimension Page 136, Q. 118 Change Key:  Correct answer is option (c)Solution is Correct Motion in One Dimension Page 130, Q. 53 Change Key:  Correct answer is option (c)Solution is Correct. Motion in Two Dimension Page 196, Q. 9 Change Key:  Correct answer is option (a)Solution is Correct. Newton's Laws of Motion Page 246, Q. 11 Change Key:  Correct answer is option (d)Solution is Correct. Newton's Laws of Motion Page 255, Q. 2 Change Key:  Correct answer is option (d)Solution is Correct. Work, Energy, Power and Collision Page 367, Q. 45 Change Key:  Correct answer is option (a)Solution is Correct. Rotational Motion Page 470, Q. 24 Change Key:  Correct answer is option (a)Solution is Correct. Rotational Motion Page 472, Q. 32 Change Key:  Correct answer is option (a)Solution is Correct. Thermometry, Thermal Expansion and Calorimetry Page 695, Q. 9 Change key: Correct answer is option (d)Solution is Correct. Kinetic Theory of Gases Page 740, Q. 8 Change Key: Correct answer is option (a)Solution is Correct. Elasticity Page 597, Q. 58 Change Key:  Correct answer is option (a)Solution is Correct. Surface Tension Page 628, Q. 17 Change Key:  Correct answer is option (a)Solution is Correct. Fluid Mechanics Page 664, Q. 17 Given key is correct. (b)Correction in the solution:In solution write:When ice block contains a glass ball, it displaces some amount of water. But when the ice melts, then glass ball displaces less amount of water than the previous case. Hence, water level falls. Current Electricity Page 1313, Q. 58 Change Key:  Correct answer is option (a)Solution is Correct. Current Electricity Page 1316, Q. 106 Change Key:  Correct answer is option (d)Solution is Correct. Elasticity Page 599, Q. 3 Change Key: Correct answer is option (b)Solution is Correct. Current Electricity Page 1312, Q. 41 Change Key: Correct answer is option (d)Solution is Correct. Magnetic Effect of Current Page 1430, Q. 57 Change Key: : Correct answer is option (c)Solution is Correct. Simple Harmonic Motion Page 871, Q.16 Change Key:  Correct answer is option (a)Correction in solution:REPLACE THE GIVEN SOLUTION BY:When the body is moving towards equilibrium position, then the direction of restoring force and acceleration is the same, so power delivered will be positive and it will be maximum when displacement is Electromagnetic induction Page 1525 and 1547, Q.28 Question and Solution is wrongCorrection in Question:Instead of 2π write π.Correction in Solution:Write as shown in attached image: Electromagnetic induction Page 1545, Q.15 Change key: Correct answer is option (a)

 Alternating Current Page 1599, Q.100 Question is missing.This question is incomplete. Question to be replaced. Alternating Current Page 1600, Q.114 Change key: Correct answer is option (b)Solution is Correct. Alternating Current Page 1603, Q.155 Change key: Correct answer is option (a)Correction in the solution:Instead of -4 write 4 in power of 10. Electron, Photon Photoelectric Effect Page 1670, Q. 25 Change Key:  Correct answer is option  (a).Solution is Correct. Ray Optics Page 1890, Q.21 Change Key:  Correct answer is option (b)Solution is Correct. Ray Optics Page 1899, Q.73 Change Key: Correct answer is option  (d)Solution is Correct. Wave Optics Page 2007, Q.48 Correction in solution:Instead of 6.99 write 6.08.Instead of 7 write 6.Given option (b) is correct. Wave Optics Page 2016, Q.103 Change Key:  Correct answer is option  (b)Solution is Correct. Communication Page 1863, Q. 23 Change Key:  Correct answer is option  (c)Solution is Correct. Thermodynamics Page ix, Q.12 Change Key:  Correct answer is option  (c)Solution is Correct. Units, Dimensions and Measurement Page 81, Q.34 Change Key: Correct answer is option  (c)Solution is Correct. Rotational Motion Page 433, Q. 37 Correction in the question:Instead of “in problem 5” write “in problem 36” Gravitation Page 534, Q.64 Correction in the question:In option (a), increase the curvature of left side plot. Work, Energy, Power and Collision Page 341, Q.107 Correction in the question:Option (a) and (c) are the same.Change option as shown in attachment. Newton's Laws of Motion Page 262, Q. 30 Correction in question:In all options replace ms-1 by ms-2 Electrostatics Page 1123, Q.98 Correction in question:In all options replace μ μF by μF. Fluids Mechanics Page 675, Q.7 Change Key: Correct answer is (ab) Rotational Motion Page 490, Q.89 Change Key:  Correct answer is option (b)Solution is Correct. Transmission of Heat Page 852, Q.11 Change Key:  Correct answer is option (a)Solution is Correct. Transmission of Heat Page 853, Q.18 Change Key:  Correct answer is option (c)Solution is Correct. Transmission of Heat Page 854, Q.27 Change Key:  Replace (3) by (9). Transmission of Heat Page 854, Q.28 Correction in the solution:Replace f = ⅓ by f = 3. Magnetic Effect of Current Page 1423, Q. 94 Change Key:  Correct answer is option (a)Solution is Correct. Magnetic Effect of Current Page 1396, Q.57 Change Key:  Correct answer is option (c)Solution is Correct. Simple Harmonic Motion Page 912, Q.31 Correction in the solution:Replace 0.03 sec by 0.30 sec Alternating Current Page 1599, Q.100 Question is incomplete in book.This question is incomplete. Question to be replaced. Electronics Page 1828, Q. 38 Correction in the question: Instead of  collector supply voltage write  current gain. Electronics Page 1834, Q.39 Correction  in question and solution.Kindly change them as shown in attachment.  Correct answer is option (c) Wave Optics Page 2006, Q.39 Change Key:  Correct answer is option (d)Solution is Correct. Wave Optics Page 2016, Q.103 Change Key:  Correct answer is option (b)Solution is Correct. Alternating Current Page 1590, Q. 22 Change Key:  Correct answer is option (b)Correction in the solution:Instead of 9.99= 10 V write 5√3 V Thermodynamics Page 783, Q.21 Change Key: Correct answer is option (b)Correction in the solution:Instead of ΔV=0 write ΔU=0 Thermodynamics Page 785, Q.32 Correction in the question:In option (b) write: Correction  in the Solution:Change Key: Correct option is (b)Delete the last line of the solution. Work, Energy, Power and Collision Page 338, Q.88 Change Key:  Correct answer is option (b)Correction in the solution:Change the solution as shown in the attachment. Work, Energy, Power and Collision Page 342, Q.17 Change Key:  Correct answer is option (c)Correction in the solution:Write solution from the given attachment. Motion in one dimension Page 105, Q.62 Change Key:  Correct answer is option  (d).Correction in the solution:Write solution from the given attachment. Motion in one dimension Page 113, Q.1 Change Key: Correct answer is option  (b). Correction  in the  Solution: Write from given attachment. Electrostatics Page 1147, Q.73 Correction in the solution:Use small m, instead of Capital M.At the end of solution write:m1/m2 = √3 = 1.7Correct option is (a) Electrostatics Page 1170, Q.3 Change Key: Correct answer is option (b)Solution is Correct. Current Electricity Page 1290, Q.27 Diagram is missing in this Question.Use attached diagram. Thermodynamics Page (xx), Q.34 Change Key: Correct answer is option (c)Solution is Correct. Newton's Laws of Motion Page 258, Q. 40 Diagram is missing in Question.Use attached diagram. Rotational Motion Page 476, Q.35 Correction in the solution:Make changes in the solution using attachment. Correct solution is option (a). Simple Harmonic Motion Page 911, Q.14 No changeCorrect answer is option (a). Rotational Motion Page 428, Q.54 No changeCorrect answer is option (a). Rotational Motion Page 447, Q.64 The question is incomplete.Complete the question using the given attachment. Rotational Motion Page 449, Q.33 Correction in Question: Write in option (d) 1470 J Ray Optics Page 1893, Q.28 Answer Key and Solution are wrong. Change key: Correct answer is option (b).Write correct solution from the given attachment. Units, Dimensions and Measurement Page 50, Q. 50 The given dimension in question and solution is wrong. Correction in Question: Correction in Solution: Units, Dimensions and Measurement Page 51, Q. 60 Correction in the question: Correction in the solution: Correct answer  is option (d) Magnetism Page 1476, Q. 68 Change Key: Correct option is (a)Solution is correct. Magnetic Effect of current Page 1427, Q. 2 Change Key:  Correct answer is option (d)Correction in the solution:Instead of ĵ write -ĵ. Magnetic Effect of Current Page 1441, Q. 129 Correction in the solution:Write attached solution. Correct answer is option (c).