Class 12 NCERT Solutions for Physics

There are solved answers for all the chapters, exercise-by-exercise, in the Class 12 NCERT Solutions for Physics. Class 12 students will find this material useful as they prepare for their exams. NCERT syllabus and curriculum are followed in the development of the solutions here. By using our expertise, we prepare these materials with the intent of teaching at a level students can understand. We provide 12th-grade students with answers to all their questions to clarify their doubts.

NCERT textbooks are formulated by the CBSE board. Due to this, all students studying under this board have access to the finest solution materials. As the level of education increases in this class, it is also an imperative class for students. The primary subjects at this level are either Math or Biology, and Physics and Chemistry are shared. This is the beginning of a student’s future education and career, so they need to be more focused on their studies. As a result, students can really score well in their final exams when they use these solutions.

The solutions to all the chapters in the Physics subject for Class 12 have been organized properly. Students can easily find answers to any question that is mentioned in the textbook here. These answers are in accordance with the 2022-2023 syllabus .So students need not worry about the information in the solutions. We are able to offer them well-prepared and structured solutions here.

The Class 12 NCERT solutions for Physics are based on the chapters that are present in the textbooks Part 1 and Part 2, exercise-by-exercise. Among the topics discussed are electromagnetic induction, alternating current, electromagnetic waves, and electric charges and fields. Students can download PDF versions of the solutions for these chapters and learn them at their convenience.

Class 12 NCERT Solutions for Physics

This page contains the NCERT solutions for all the chapters of the Class 12 Physics subject. In order to find solutions to each chapter, students can click on the links below. The questions here are answered in accordance with the textbook’s method and procedures. Here are the PDF files for all the chapters, which students can download and study offline.

Class 12 NCERT Solutions for Physics

  •  An overview of 1 Chapter- Electric Charges & Fields
  •  An overview of 2 Chapter-Electrostatic Potential & Capacitance
  • An overview of 3 Chapter- Current Electricity
  •  An overview of 4 Chapter-Moving Charges & Magnetism
  •  An overview of 5 Chapter-Magnetism & Matter
  • An overview of 6 Chapter-Electromagnetic Induction
  • An overview of 7 Chapter-Alternating Current
  •  An overview of 8 Chapter-Electromagnetic Waves
  •  An overview of 9 Chapter-Ray Optics and Optical Instruments
  •  An overview of 10 Chapter-Wave Optics
  •  An overview of 11 Chapter-Dual Nature Of Radiation & Matter
  • An overview of 12 Chapter- Atoms
  • An overview of 13 Chapter- Nuclei
  • An overview of 14 Chapter- Semiconductor Electronics Materials Devices & Simple Circuits
  • An overview of 15 Chapter- Communication System 

There is not an easy way to answer the questions in the textbooks. Solving those problems requires mathematical and logical skills. The 12th-grade Physics curriculum covers a large variety of topics. These topics will also be covered in higher education, such as in Class 12th.

More Resources for NCERT Solutions Class 12:

  • NCERT Solutions
  • Important Questions Class 12 Physics
  • Physics Practicals Class 12 Manual
  • HC Verma Concepts of Physics

Frequently Asked Questions:

  • How many chapters are there in class 12 physics?

There are 15 chapters in Class 12 Physics NCERT textbook.

  • Is NCERT Physics Textbook enough for Class 12 boards?

  • The NCERT textbook for physics for class 11 and 12 is more than enough for any kind of exam if it is studied properly and each numerical is solved with proper care.  NCERT Physics textbooks are enough to score 90+ in 12th boards.

Class 12 Physics Chapter 1 Electric Charges and Fields

When we remove our synthetic clothing or sweater, especially in dry weather, we have all experienced seeing a spark or hearing a crackling. With females’ clothing, such as a polyester saree, this is almost probable. The lightning we observe in thunderstorms is another typical example of an electrical discharge. We also feel like we are getting an electric shock while opening a car door or after stumbling off a bus seat and grasping the iron bar.

These experiences are caused by the electric charges in our bodies discharging that built up through the rubbing of insulated surfaces. You may have also heard that the production of static electricity is to blame for this. We will specifically cover this topic in this and the following chapter. Anything that is static does not change through time or move. The study of forces, fields, and potentials resulting from static charges is the focus of electrostatics.

Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance

A body’s potential energy is created when an external force works to move it from one location to another while resisting forces like gravity or spring force. The body moves when the outside force is withdrawn, acquiring kinetic energy and losing an equivalent quantity of potential energy.

Thus, the whole amount of kinetic and potential energy is conserved. Such forces are referred to as conservative forces. Examples of conservative forces include the spring force and gravitational force.

Another conservative force is the Coulomb force between two charges that are stationary.

This should not come as a surprise given that both laws depend on distance in an inverse-square manner and only differ in the proportionality constants; in Coulomb’s law, charges take the place of masses in the gravitational law. Thus, we may define the electrostatic potential energy of a charge in an electrostatic field, just like the potential energy of a mass in a gravitational field.

Class 12 Physics Chapter 3 Current Electricity

Electric current is made up of charged particles in motion. Many circumstances inherently contain these currents. One such occurrence when charges move from the clouds to the earth through the atmosphere is lightning, which can occasionally have negative outcomes. While the flow of charges in lightning is not constant, we frequently come across devices where the flow of charges is constant, much like how water would flow in a river. Such items include a lamp and a clock that runs on batteries. We will look at several essential laws relating to stable electric currents in this chapter. 

Class 12 Physics Chapter 4 Moving Charges and Magnetism

This chapter will demonstrate the effects of magnetic fields on moving charged particles such as protons, electrons, and current-carrying wires. We will also discover how magnetic fields are created by currents. We’ll show how a cyclotron can accelerate particles to extremely high energies.

We’ll investigate how a galvanometer detects currents and voltages. We follow the following convention in this and the following chapters on magnetism: A dot represents an electric or magnetic field or current that is emanating from the paper’s plane. A cross represents a field or current that enters the paper’s plane.

Class 12 Physics Chapter 5 Magnetism And Matter

Nature exhibits magnetic phenomena everywhere. Huge, far-off galaxies, tiny, invisible atoms, people, and animals are all surrounded by a variety of magnetic fields that come from different sources.

Human evolution is not related to the earth’s magnetism. We discovered that magnetic fields are created by moving charges or electric currents in the previous chapter. In the following chapter, we examine magnetism as a distinct topic. The magnetic field of the earth acts like a magnet, roughly pointing from the geographic south to the north. A bar magnet points north-south when it is unrestrainedly hanging. The north pole of the magnet is the tip that goes in the direction of the geographic north, and the south pole is the tip that points in the direction of the geographic south.

Class 12 Physics Chapter 6 Electromagnetic Induction

The electromagnetic induction phenomena has practical applications in addition to its theoretical and academic value. Imagine a world without electricity, which means there would be no computers, cellphones, trains, or electric lights. Modern transformers and generators are a direct result of Faraday and Henry’s groundbreaking experiments. The discovery of electromagnetic induction is largely responsible for the advancement of modern civilization.

Class 12 Physics Chapter 7 Alternating Current

The voltage of the electrical mains supply in our homes and places of business varies over time in a manner akin to a sine function. The current it drives in a circuit is known as the alternating current (ac current), and such a voltage is known as the alternating voltage (ac voltage)*. The majority of electrical appliances we use nowadays demand ac voltage. This is mostly due to the fact that alternating current is used to transfer and distribute the majority of the electrical energy that power providers sell. The primary benefit of using ac voltage over dc voltage is the simplicity and effectiveness with which ac voltages may be transformed from one voltage to another using transformer. Additionally, electrical energy may be economically delivered over large distances.

Class 12 Physics Chapter 8 Electromagnetic Waves

We discovered that the magnetic field is created by an electric current and that two current-carrying wires interact magnetically with one another. We have also seen that an electric field is produced when a magnetic field that is changing over time. According to James Clerk Maxwell (1831–1879), a magnetic field is produced by both an electric current and an electric field that is due to time variation. Maxwell discovered a contradiction in the Ampere’s circuital rule while using it to determine the magnetic field at a place outside a capacitor coupled to a time-varying current. To resolve this contradiction, he proposed the presence of a second current, which he termed the displacement current.

Class 12 Physics Chapter 9 Ray Optics and Optical Instruments

Using the ray model of light, we examine the phenomena of light reflection, refraction, and dispersion in this chapter. We will examine how images are formed by spherical and plane reflecting and refracting surfaces using the essential laws of reflection and refraction. The design and operation of a few significant optical instruments, including the human eye, are then described.

Class 12 Physics Chapter 10 Wave Optics

In this chapter, we’ll first talk about how the Huygens principle was originally put together before deriving the rules of reflection and refraction. The interference phenomena,which is based on the superposition concept, will also be covered. And we’ll talk about the Huygens-Fresnel principle-based diffraction phenomenon. We will talk about the polarisation phenomena last because it is based on the fact that light waves are transverse electromagnetic waves.

Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter

It was observed that some metals released negatively charged, slow-moving particles when exposed to ultraviolet light. Additionally, it has been shown that certain metals generate negatively charged particles when heated to high temperatures. These particles’ e/m value was discovered to be identical to those of cathode ray particles. These discoveries proved that, despite being created under various circumstances, all of these particles had the same basic properties. These subatomic particles were given names similar to electrons by J. J. Thomson in 1897, and he proposed that they were the basic, universal building blocks of matter.

Class 12 Physics Chapter 12 Atoms

A significant step toward how we currently understand the atom was taken by Rutherford’s nuclear model. However, it was unable to explain why atoms could only emit specific wavelengths of light.

How is it possible for an atom as basic as hydrogen, which only has one proton and one electron, to generate a complex spectrum of distinct wavelengths? The electron in the traditional model of an atom spins around the nucleus much like a planet does around the sun. We’ll find, though, that there are some significant obstacles to accepting such a paradigm.

Class 12 Physics Chapter 13 Nuclei

The positive charge and mass of every atom are tightly packed together to form the nucleus, as we discovered in the last chapter. A nucleus’ overall size is significantly smaller than an atom’s. The radius of a nucleus is approximately 104 times smaller than the radius of an atom, according to experiments on the scattering of -particles. This indicates that an atom’s volume is roughly 10–12 times larger than that of a nucleus. To put it another way, an atom is nearly empty. Nevertheless the nucleus of an atom would be the size of a pinhead if it were extended to the size of a classroom.

Class 12 Physics Chapter 14 Semiconductor Electronic: Material, Devices And Simple Circuits

In this chapter, we will cover certain semiconductor devices such junction diodes (a two-electrode device) and bipolar junction transistors as well as the fundamental ideas of semiconductor physics (a 3-electrode device). Additionally, a few circuits showcasing their applications will be discussed.

Class 12 Physics Chapter 15 Communication Systems

We are all aware that the transmitter, channel, and receiver are the three fundamental components of communication. The function of each piece is thoroughly explained in this chapter. Additionally, it covers topics such as the propagation of electromagnetic waves, the bandwidth of signals, the bandwidth of the transmission medium, the necessity of modulation, amplitude modulation, production and detection of amplitude modulated waves, etc. There are exercises to do at the conclusion of the chapter after a full explanation of the themes.

All students know that the 12th grade is the most significant class for them, as it marks the beginning of their college careers. It is only when you have scored at least the minimum qualifying marks that you can get admission into a well recognized institute or university. There are no other options if you want to get a good job or are recruited directly by colleges. It is crucial that you build a strong foundation in Class 12 Physics and gain a thorough understanding of the concepts.

Here, we provide Class 12 NCERT Solutions for physics with solutions to all their questions, so that their doubts can be clarified. All the chapter introductions and links for the exercises are provided below. Please read them carefully.


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