NCERT Solutions for Class 12 Physics covers all the topics in the NCERT textbook. A detailed explanation of NCERT Class xii Physics solutions is provided on this page, making it easier for students to understand the complex concepts behind the numerical problems in NCERT Physics Class 12. All the NCERT Class 12 Phy Solutions are provided by the subject experts. The candidates can check for all the Electric Charges and Fields Class 12 numerical on this page. They can also freely access the PDF of the Solved NCERT Physics Class 12 from this page.
These NCERT Solutions Physics Class 12th comprehensively cover all the exercises from the 14 chapters found in the Class 12 NCERT Physics textbook, aligning with the syllabus. To access NCERT Class 12 Phy Solutions for each chapter, simply click on the links provided on this page. We strongly recommend that students work through and review the 12 NCERT Physics solutions, as this will greatly enhance their chances of achieving high scores in their annual examinations. Additionally, these NCERT Solutions for Class 12 Physics can be immensely helpful for individuals preparing for entrance exams such as JEE Main, JEE Advanced and NEET. They are designed to offer shortcuts and tips to facilitate solution-finding. For those gearing up for the Class 12 board exams, these NCERT Solutions for Class 12 Physics should be considered an indispensable resource. Furthermore, students preparing for entrance exams may also benefit from referring to NCERT Solutions for Class 11 Physics.
NCERT Solutions Physics Class 12 - Chapters
The students can click the below links to access the NCERT Class 12 Physics solutions chapter-wise solutions.
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Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits |
Chapter 1: Electric Charges and Fields
Electric charge, a fundamental characteristic of matter, results in the interaction of matter with an electric or magnetic field. An electric field accompanies an electric charge, while the motion of an electric charge produces a magnetic field. The charges are of two types positive and negative. Materials that allow the flow of electricity with ease are referred to as conductors.
Electric Charges and Fields: Topics Covered
- Introduction to Electric Charges and Fields
- Electric Charge
- Conductors and Insulators
- Basic Properties of Electric Charge
- Coulomb’s Law
- Forces between Multiple Charges
- Electric Field
- Electric Field Lines
- Electric Flux
- Electric Dipole
- Dipole in a Uniform External Field
- Continuous Charge Distribution
- Gauss’s Law
- Applications of Gauss’s Law
Chapter 2: Electrostatic Potential and Capacitance
The Electrostatic Potential and Capacitance NCERT Solutions are well-structured and follow a logical sequence. Class 12 Electrostatic Potential and Capacitance Solutions are provided by expert teachers in a step-by-step manner, which makes it easier for students to follow along. All the Chapter 2 Physics Class 12 Important Questions are covered here. The candidates can find the solutions for all Chapter 2 Physics Class 12 numericals.
In an electrostatic field, the energy required to move a single positive charge from an infinite distance to a specific point is known as the electrostatic potential at that position. Capacitance refers to the ability of a conductor to store an electrical charge. It is defined as the ratio of the magnitude of the charge stored on a conductor to the potential difference across the conductor
Electrostatic Potential and Capacitance: Topics Covered
- Introduction to Electrostatic Potential and Capacitance
- Electrostatic Potential
- Potential due to a Point Charge
- Potential due to an Electric Dipole
- Potential due to a System of Charges
- Equipotential Surfaces
- Potential Energy of a System of Charges
- Potential Energy in an External Field
- Electrostatics of Conductors
- Dielectrics and Polarisation
- Capacitors and Capacitance
- The Parallel Plate Capacitor
- Effect of Dielectric on Capacitance
- Combination of Capacitors
- Energy Stored in a Capacitor
Chapter 3: Current Electricity
Current Electricity Class 12 NCERT solutions are helpful for students preparing for board exams as they provide a good foundation for the exam. Solving Current Electricity Class 12 numericals given in the NCERT textbook also helps students to practice and improve their problem-solving skills. All the Current Electricity Class 12 questions and answers are provided here for the students to refer. The candidates can check Physics Chapter 3 Class 12 exercise solutions here.
Electric current refers to the movement of electrons from one part of a circuit to another. If two points with varying electrical potentials are connected by a wire, the electrons will move from the first point to the second until both have the same potential, at which the current stops flowing. Current only flows in a conductor when there is a potential difference present throughout it.
Current Electricity: Topics Covered
- Introduction to Current Electricity
- Electric Current
- Electric Currents in Conductors
- Ohm’s law
- Drift of Electrons and the Origin of Resistivity
- Limitations of Ohm’s Law
- Resistivity of Various Materials
- Temperature Dependence of Resistivity
- Electrical Energy, Power
- Cells, emf, Internal Resistance
- Cells in Series and in Parallel
- Kirchhoff’s Rules
- Wheatstone Bridge
Chapter 4: Moving Charges and Magnetism
Physics Chapter 4 Class 12 exercise solutions are prepared by subject matter experts who have a deep understanding of the concepts. Therefore, the Moving Charges and Magnetism NCERT solutions are accurate and reliable. Moving Charges and Magnetism Class 12 NCERT solutions are solved by the subject experts.
This chapter covers the concept of how the magnetic field interacts with moving charged particles such as electrons, protons, and current-carrying wires. When a conductor carries current, a magnetic field is generated around it, and the direction of this magnetic field can be determined by using Ampere's swimming rule. The region around a magnet or any current-carrying conductor where its magnetic effect can be detected is referred to as the magnetic field.
Moving Charges and Magnetism: Topics Covered
- Introduction to Moving Charges and Magnetism
- Magnetic Force
- Motion in a Magnetic Field
- Magnetic Field due to a Current Element, Biot-Savart Law
- Magnetic Field on the Axis of a Circular Current Loop
- Ampere’s Circuital Law
- The Solenoid
- Force between Two Parallel Currents, the Ampere
- Torque on Current Loop, Magnetic Dipole
- The Moving Coil Galvanometer
Chapter 5: Magnetism and Matter
Class 12 Physics Chapter 5 NCERT solutions are an excellent resource for students who want to score well in their exams and have a strong foundation in the subject. NCERT Solutions is created to give students the correct answers that are entirely based on the most recent curriculum guidelines set forth by the CBSE board.
Magnetism refers to the occurrence of attractive or repulsive forces between two magnetic objects. All substances have some level of magnetic characteristics. When these substances are placed in a magnetic field, these substances are impacted by the magnetic field, and their behaviour determines whether they are classified as paramagnetic (attracted) or diamagnetic (repelled).
Magnetism and Matter: Topics Covered
- Introduction to Magnetism and Matter
- The Bar Magnet
- Magnetism and Gauss’s Law
- Magnetisation and Magnetic Intensity
- Magnetic Properties of Materials
Chapter 6: Electromagnetic Induction
For Students in Class 12, the Electromagnetic Induction Class 12 NCERT Solutions are essential for exam preparation. Students can use Chapter 6 Physics Class 12 Important Questions with answers to learn for the board exam and competitive exams like NEET and JEE. Students should routinely practise these solutions in order to fully understand the topics in the Chapter Electromagnetic Induction.
Electromagnetic induction is a phenomenon where a voltage or EMF (Electromotive Force) is generated across an electrical conductor when it is placed in a specific position with respect to a varying magnetic field or when a stationary magnetic field is applied to a moving conductor. The Law of Induction, which describes this process, was discovered by Michael Faraday in 1830.
Electromagnetic Induction: Topics Covered
- Introduction to Electromagnetic Induction
- The Experiments of Faraday and Henry
- Magnetic Flux
- Faraday’s Law of Induction
- Lenz’s Law and Conservation of Energy
- Motional Electromotive Force
- Inductance
- AC Generator
Chapter 7: Alternating Current
Physics Class 12 Chapter 7 Exercise Solutions provide step-by-step explanations for solving problems, which can help students understand concepts more thoroughly. This can be especially beneficial for students who may struggle with certain subjects or topics. NCERT Solutions for Class 12 Physics Chapter 7 can be a great resource for students to supplement their studies and improve their understanding of various subjects. Alternating Current Class 12 Questions and Answers provided by our expert teachers.
The movement of electric charge is what defines electric current. While direct current involves charge flowing in a single direction, alternating current periodically changes the direction of flow.
Alternating Current: Topics Covered
- Introduction to Alternating Current
- AC Voltage Applied to a Resistor
- Representation of AC Current and Voltage by Rotating Vectors — Phasors
- AC Voltage Applied to an Inductor
- AC Voltage Applied to a Capacitor
- AC Voltage Applied to a Series LCR Circuit
- Power in AC Circuit: The Power Factor
- Transformers
Chapter 8: Electromagnetic Waves
Electromagnetic Waves Class 12 NCERT Solutions cover all the topics and concepts included in the Chapter. NCERT Solutions for Physics Chapter 8 Electromagnetic Waves are designed by subject matter experts and provide a comprehensive understanding of each topic. Electromagnetic Waves Class 12 Question and Answers are an excellent resource for students preparing for their Class 12 board exams.
Energy transfer occurs through electromagnetic waves which result from a magnetic field that changes, inducing an electric field that also changes. These waves comprise oscillating electric and magnetic fields that are perpendicular to one another. Unlike mechanical waves, electromagnetic waves can travel without requiring a medium to transmit. This characteristic allows them to propagate through a vacuum. Electromagnetic waves span a wide range of frequencies and include radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-rays, and gamma rays.
Electromagnetic Waves: Topics Covered
- Introduction to Electromagnetic Waves
- Displacement Current
- Electromagnetic Waves
- Electromagnetic Spectrum
Chapter 9: Ray Optics and Optical Instruments
Physics can be a challenging subject for some students, and the Class 12 Ray Optics and Optical Instruments NCERT solutions given on this page provide step-by-step explanations to help students understand the concepts in a better way. By solving the Ray Optics and Optical Instruments Class 12 Important Questions, students can gain a better understanding of the type of questions that may appear in the exams, and they can prepare accordingly. Ray Optics and Optical Instruments Class 12 pdf is also available here for download.
The study of how light behaves as it travels in rays or straight lines is known as ray optics. Optical instruments are objects that control and measure light using the concepts of ray optics. They include prisms, mirrors, lenses, and other instruments that allow light to be focused, dispersed, or redirected. Telescopes, microscopes, cameras, binoculars, and spectrometers are a few examples of optical equipment that are frequently used. Understanding the behaviour of light in optical instruments requires knowledge of ray optics.
Ray Optics and Optical Instruments: Topics Covered
- Introduction to Ray Optics and Optical Instruments
- Reflection of Light by Spherical Mirrors
- Refraction
- Total Internal Reflection
- Refraction at Spherical Surfaces and by Lenses
- Refraction through a Prism
- Optical Instruments
Chapter 10: Wave Optics
Wave Optics Class 12 NCERT solutions can save students time by providing quick and accurate solutions to the questions, allowing them to move on to the next question or topic without getting stuck on a particular problem. By comparing their answers with the solutions provided, students can assess their performance and identify their strengths and weaknesses in the subject. Wave Optics Class 12 exercise solutions pdf is also available for download here.
The branch of optics known as wave optics deals with the study of the behaviour of light as a wave. In wave optics phenomena such as propagation, diffraction, interference, and polarisation of light beams are analysed. Wave optics is based on the understanding that light is an electromagnetic wave that travels through space.
Wave Optics: Topics Covered
- Introduction to Wave Optics
- Huygens Principle
- Refraction and Reflection of Plane Waves using Huygens Principle
- Coherent and Incoherent Addition of Waves
- Interference of Light Waves and Young’s Experiment
- Diffraction
- Polarisation
Chapter 11: Dual Nature of Radiation and Matter
Physics can have some complex topics, and the Physics Chapter 11 Class 12 exercise solutions can provide clarity on these topics by breaking them down into simpler steps. By referring to the Dual Nature of Radiation and Matter Class 12 numerical solutions and solving the exercise solutions, students can develop their analytical skills and learn to think critically about problems and their solutions. The Dual Nature of Radiation and Matter Class 12 NCERT pdf is also available here.
The dual nature of radiation and matter is the concept that describes the behaviour of both particles and waves at the atomic and subatomic level. In the early 20th century, experiments showed that both light and matter exhibit both particle-like and wave-like behaviour, leading to the development of the theory of quantum mechanics.
Dual Nature of Radiation and Matter: Topics Covered
- Introduction to Dual Nature of Radiation and Matter
- Electron Emission
- Photoelectric Effect
- Experimental Study of Photoelectric Effect
- Photoelectric Effect and Wave Theory of Light
- Einstein’s Photoelectric Equation: Energy Quantum of Radiation
- Particle Nature of Light: The Photon
- Wave Nature of Matter
Chapter 12: Atoms
Atoms Physics Class 12 NCERT Solutions offer a variety of problems that cover different aspects of the subject, providing students with a comprehensive understanding of the concepts. By solving the Atoms Class 12 Solutions, students can develop their analytical skills and learn to think critically about problems and their solutions. Class 12 Physics Atoms PDF is also available for download here.
Atoms are the basic building blocks of matter, consisting of a central nucleus made up of protons and neutrons, with electrons orbiting around it in shells or energy levels. Atoms are incredibly small, with diameters on the order of a few tenths of a nanometer.
Atoms: Topics Covered
- Introduction to Atoms
- Alpha-particle Scattering and Rutherford’s Nuclear Model of Atom
- Atomic Spectra
- Bohr Model of the Hydrogen Atom
- The Line Spectra of the Hydrogen Atom
- DE Broglie’s Explanation of Bohr’s Second Postulate of Quantisation
Chapter 13: Nuclei
Class 12 Physics Chapter Nuclei NCERT Solutions can be a great way for students to learn and master the subject, and prepare themselves for exams and future studies. The Nuclei Class 12 NCERT solutions provide additional practice for students, and they can use them to practise and reinforce their understanding of the concepts. Class 12 Nuclei Solutions is provided in PDF format on this page.
A nucleus is the centre core of an atom in physics, and it is made up of protons and neutrons. The neutrons are electrically inert, whereas the protons have a positive charge. The mass number of the nucleus is determined by adding the protons and neutrons together, whereas the amount of protons in the nucleus determines the atomic number of the element. The strong nuclear force, one of the four basic forces of nature, holds nuclei together.
Nuclei: Topics Covered
- Introduction to Nuclei
- Atomic Masses and Composition of Nucleus
- Size of the Nucleus
- Mass-Energy and Nuclear Binding Energy
- Nuclear Force
- Radioactivity
- Nuclear Energy
Chapter 14: Semiconductor Electronics: Materials, Devices and Simple Circuits
Semiconductor Electronics: Materials, Devices and Simple Circuits NCERT solutions are an excellent resource for students who are looking to improve their understanding of the subject and excel in their exams. The solutions provide comprehensive answers to all the questions, ensuring that students have a complete understanding of the topic. Semiconductor Electronics: Materials, Devices and Simple Circuits PDF is also available for download here.
Semiconductor electronics is a branch of electronics that deals with the study of materials, devices, and circuits based on semiconductors. Semiconductors are materials that have electrical conductivity between conductors and insulators. This unique property makes them ideal for the development of electronic devices, which are essential components of modern technology.
Semiconductor Electronics: Materials, Devices and Simple Circuits: Topics Covered
- Introduction to Semiconductor Electronics
- Classification of Metals, Conductors and Semiconductors
- Intrinsic Semiconductor
- Extrinsic Semiconductor
- p-n Junction
- Semiconductor Diode
- Application of Junction Diode as a Rectifier
NCERT Class 12 Physics Chapter Weightage - Theory
Check the weightage of Physics Class 12 for the theory exam in the table below:
| Unit |
Topic |
Marks |
|---|---|---|
| I |
Electrostatics |
16 |
| Chapter–1: Electric Charges and Fields |
||
| Chapter–2: Electrostatic Potential and Capacitance |
||
| II |
Current Electricity |
|
| Chapter–3: Current Electricity |
||
| III |
Magnetic Effects of Current and Magnetism |
17 |
| Chapter–4: Moving Charges and Magnetism |
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| Chapter–5: Magnetism and Matter |
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| IV |
Electromagnetic Induction and Alternating Currents |
|
| Chapter–6: Electromagnetic Induction |
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| Chapter–7: Alterating Current |
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| V |
Electromagnetic Waves |
18 |
| Chapter–8: Electromagnetic Waves |
||
| VI |
Optics |
|
| Chapter–9: Ray Optics and Optical Instruments |
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| Chapter–10: Wave Optics |
||
| VII |
Dual Nature of Radiation and Matter |
12 |
| Chapter–11: Dual Nature of Radiation and Matter |
||
| VIII |
Atoms and Nuclei |
|
| Chapter–12: Atoms |
||
| Chapter–13: Nuclei |
||
| IX |
Electronic Devices |
07 |
| Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits |
||
| Total |
70 Marks |
|
NCERT Class 12 Physics Practical Exam Weightage
Check the Weightage of the Physics Class 12 NCERT Practical exam in the table below:
| Topic |
Marks |
|---|---|
| Two experiments one from each section |
7 Marks for each experiment |
| Practical record [experiments and activities] |
5 Marks |
| One activity from any section |
3 Marks |
| Investigatory Project |
3 Marks |
| Viva on experiments, activities and project |
5 Marks |
| Total |
30 marks |
NCERT Class 12th Physics Solutions and FAQs
Q1 How to prepare for the Class 12 Physics Board exam?
A 1 To prepare for the Class 12 Physics exam, students should first read and understand each chapter thoroughly. They can then solve the exercises and practice questions given at the end of each chapter. Additionally, students can also refer to other study materials and online resources to clarify their doubts and improve their understanding.
Q 2 Are Class 12 NCERT chapter exercise solutions enough to score well in board exams?
A 2 While exercise questions from chapters are important and cover most of the syllabus, students should also refer to other study materials and practice papers to score well in board exams. Solving sample papers, previous year papers, and mock tests will help students to improve their speed, accuracy, and time management skills.
Q 3 Can Class 12 Physics chapter solutions help in competitive exams?
A 3 Yes, the Class 12 NCERT exercise solution can help students prepare for competitive exams such as JEE, NEET, and others. These solutions provide a strong foundation in each subject and cover most of the topics asked in these exams. However, students should also refer to other study materials and practice papers to score well in these exams.
Q 4 Are Class 12 NCERT Physics exercise solutions available online?
A 4 Yes, Class 12 NCERT chapter solutions are available online on various websites and educational portals. The solutions to all the questions are available on this page. The solutions are also available in PDF format. Students can access these solutions for free and can also download them for offline use.
Q 5 How many chapters are there in Class 12 NCERT Physics books?
A 5 In the Physics textbook there are 14 chapters. The chapters included are Electric Charges and Fields, Electrostatic Potential and Capacitance, Current Electricity, Moving Charges and Magnetism, Magnetism and Matter, Electromagnetic Induction, Alternating Current, Electromagnetic Waves, Ray Optics and Optical Instruments, Wave Optics, Dual Nature of Radiation and Matter, Atoms, Nuclei and Semiconductor Electronics: Materials, Devices and Simple Circuits.
Q 6 What is the difficulty level of Class 12 NCERT Physics chapters?
A 6 The difficulty level of Class 12 NCERT Physics chapters varies from chapter to chapter. Some chapters are relatively straightforward, while others may be more complex and require a deeper understanding of the concepts. However, overall, the difficulty level of NCERT Physics chapters is considered moderate.
Q 7 How many marks are allocated for the Class 12 Physics exam?
A 7 The Class 12 Physics theory exam is for 70 marks, and the remaining 30 marks are for practical which makes a total of 100 marks.
Q 8 What are the important topics from the Class 12 Physics textbook?
A 8 The are many important topics in Class 12 Physics. Some of the important topics in Class 12 Physics include Electric Charges and Field, Dual nature of matter and radiation, Alternating Current, Semiconductor electronics, Magnetism, Optics, Atoms and nuclei, Electromagnetic Waves, Electromagnetic Induction, and many more.
Q 9 Which Physics books are recommended for competitive exams like NEET, JEE etc?
A 9 Some of the recommended books for Class 12 Physics are NCERT Physics Part I and II, Concepts of Physics by H.C. Verma, Problems in General Physics by I.E. Irodov, Concepts of Competition Physics for CBSE PMT by Agarwal, Objective Physics by Prof. Satya Prakash Arya and NCERT Physics by Anil Aggarwal.
Q 10 How important are practicals in Class 12 Physics?
A 10 Practicals are an essential part of Class 12 Physics, as they help you understand the practical applications of the theoretical concepts. They also carry a weightage of 30 marks in the final exam.
Q 11 How can the students improve their numerical-solving skills in Class 12 Physics?
A 11 To improve their numerical-solving skills in Class 12 Physics, students can practise solving various problems from different sources, such as textbooks, reference books, and previous years' question papers. The students can find the solutions to all the Physics textbook questions on this page. The students can refer to this page and learn.
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