NCERT Solutions for class 12 physics have been solved and reviewed by the expert teachers of Vedantu, who have more than 500 expert teachers working for them in the field of education. The solutions provided in this page help you to solve the unsolved problems in the class 12 Physics book prescribed by the National Council of Education Research (NCERT), an autonomous organization that guides the government to set the curriculum for schools following the Central Board of Secondary Education (CBSE). The perfectly curated solutions in Physics NCERT solutions class 12 helps you to quickly grasp the concepts. Vedantu offers the solution in a FREE PDF format, which answers questions and problems from the Physics textbooks related to chapters such as waves, electromagnetic, semiconductors, atoms, and others. Thorough understanding of the solutions helps explain Physics concepts to the point where they are at the tip of the tongue for learners. All you need is access to the internet so that you can download it from Vedantu.com.
Physics NCERT Solutions for Class 12 - Free PDF Download (All Exercises are Covered with Answers)
Physics has completely transformed the world that we live in. During ancient times, humans might have accidentally discovered fire which helped to evolve the society. Physics is instrumental to theorize concepts and then implement them into useful products rather than relying on chance discoveries. The Physics NCERT solutions class 12 covers all the 15 chapters of prescribed syllabus given in the NCERT textbook. It presents an alternative and interesting way to learn, which helps to enhance your abilities and help to get ready for engineering entrance exams like JEE. The type of questions and format provided in the textbooks can be repetitive or confusing, but NCERT physics class 12 solutions help tackle problems while answering the questions or solving equations. The NCERT solutions for class 12 physics breaks down into detailed steps and explains the answer, which helps you understand the pattern of questioning. Below given are the chapter wise details.
Chapter 1 - Electric Charges and Field
This is the first chapter of Class 12 Physics lessons and it discusses details about the different types of electric charge and its fields, transference of electrons, additivity of charges, conservation of charge, quantization of charge, Gauss’s law, etc. There are a total of 15 topics that have been covered in this chapter. And along with the lessons, you are also given a few exercises to solve and solutions to help you understand each lesson well.
Chapter 2 – Electrostatic Potential and Capacitance
In this chapter, students of Class 12 CBSE shall learn about the electrostatic potential, electrostatic potential difference between two points in an electric field, the various factors that lead to electrostatic potential, the relationship between electric field and potential gradient, the potential energy in an external field, and more topics related to electrostatic potential. The formulas related to each topic are also explained to help the students understand the topics better. There are exercises at the end of the chapter that tests your understanding of the subject.
Chapter 3 – Current Electricity
This is an important chapter for students of Class 12 CBSE board and hence must be paid attention to. There are a total of 16 topics that are covered in this chapter. Students are made to understand about electric current, current density, how the flow of electric charge differs in the case of solid metallic conductors and liquid conductors, about drift velocity, about Ohm’s law, the relationship between resistivity and relaxation time, etc. Formulas are also explained and there are exercises to solve at the end of the chapter.
Chapter 4 – Moving Charges and Magnetism
To understand the future chapters well, students of Class 12 CBSE board must pay careful attention to this chapter. There are a total of 11 topics that have been covered in this chapter. The chapter explains what a magnetic force is and motion in a magnetic field. The chapter also talks about Biot-Savart’s Law and the relationship between μ0, ε0, and c. The chapter also talks about Ampere’s Circuital Law, motion in combined electric and magnetic fields, the Solenoid and the Toroid, etc.
Chapter 5 – Magnetism and Matter
After a brief discussion on Magnetism in the previous chapter, this chapter delves deeper into the subject of Magnetism and Matter. A total of seven topics are covered in this chapter. The topics include the bar magnet, Magnetism and Gauss’s Law, the earth’s magnetism. The chapter also explains the magnetic properties of different materials, the properties of magnetic field lines, etc. A table also explains the Electrostatic Analog. There are questions at the end of the chapter that test the student’s understanding of the chapter.
Chapter 6 – Electromagnetic Induction
After explaining in details about Magnetism and Matter, the sixth chapter of the book talks about Electromagnetic Induction. A total of 10 topics related to electromagnetic induction are discussed in the chapter that includes magnetic flux, motional electromotive force, a quantitative study on energy consideration, eddy currents, and inductance. The chapter also discusses the first and second laws of Faraday’s Law of Electromagnetic Induction. Lenz’s Law and Fleming’s Right Hand Rule are also explained in the chapter. Students are also expected to solve exercises at the end of the chapter.
Chapter 7 – Alternating Current
This is the chapter that talks about alternating current and AC voltage applied to a resistor, a capacitor, AC Voltage Applied to a Series LCR Circuit and an inductor. It also discusses power in AC circuit, LC Oscillations, and transformers. There are a total of nine topics that have been covered in this chapter. There are questions at the end of the chapter that tests the student’s knowledge of the topics.
Chapter 8 – Electromagnetic Waves
This chapter on Electromagnetic waves discusses three important topics in Physics – displacement current, electromagnetic waves, and the electromagnetic spectrum. Students are told about the need for displacement current, Maxwell’s Equations of Electromagnetic Waves, the nature and speed of electromagnetic waves, the uses of electromagnetic waves in microwaves, radio waves, x-rays, etc. their frequency range, wavelength range, and detection channels, etc. Students are also given exercises to solve at the end of the chapter.
Chapter 9 – Ray Optics and Optical Instruments
This is one of the most important chapters of Class 12 Physics students since it teaches students about Ray Optics and Optical Instruments. The chapter consists of nine topics that include an introduction to Ray Optics and Optical Instruments, Reflection of Light by Spherical Mirrors, Total Internal Reflection, Refraction, and Refraction at Spherical Surfaces and by Lenses. It also talks about refraction and dispersion by a prism and some natural phenomena due to sunlight. There are also exercises at the end of the chapter for the students to solve.
Chapter 10 – Wave Optics
After introducing students to optics and optical instruments in the previous chapter, this chapter talks about wave optics at length. There are a total of seven topics in this chapter that include an introduction to wave optics, Huygens Principle and Refraction and Reflection of Plane Waves using Huygens Principle, Diffraction, Polarisation, Interference of Light Waves and Young’s Experiment, and Coherent and Incoherent Addition of Waves. Important applications of wave optics like 3D glasses, the thin film used in cars, etc. are also discussed in this chapter.
Chapter 11 – Dual Nature of Radiation and Matter
This is another important chapter of Physics. This chapter covers a total of nine topics and discusses two primary arguments like what kind of properties does radiation have? Does it resemble a particle or a wave or both? Do matters also possess particle-wave dualism? The other topics are electron emission, Photoelectric Effect, Photoelectric Effect and Wave Theory of Light, Einstein’s Photoelectric Equation: Energy Quantum of Radiation, Wave Nature of Matter, etc. There are exercises at the end of the chapter to test the student’s knowledge.
Chapter 12 – Atoms
After discussing the matter in the previous chapter, this chapter discusses atoms in details. We all know that every organic and inorganic object is made up of atoms. A total of six topics have been covered in this chapter. The topics include Alpha-particle Scattering and Rutherford’s Nuclear Model of Atom, Bohr Model of the Hydrogen Atom, Atomic Spectra, DE Broglie’s Explanation of Bohr’s Second Postulate of Quantisation, and The Line Spectra of the Hydrogen Atom.
Chapter 13 – Nuclei
After discussing the atom in details, this chapter proceeds onto the next topic, i.e., the thing that is present at the core of the atom – the nucleus/nuclei. The first topic is an introduction to the nuclei and the other ones are - the composition of the nucleus, the size of the nucleus, the nuclear force, nuclear energy, and radioactivity. The chapter also discusses the interaction between different nuclei and how nuclear energy can solve the present day energy crisis.
Chapter 14 - Semiconductor Electronics Materials Devices And Simple Circuits
This is an important chapter for Class 12 CBSE science students since it discusses important topics like the types of semiconductors, insulators, etc. There are a total of 11 topics that have been covered in this chapter. The first topic talks about the classification of metals, conductors, and semiconductors. It also discusses the difference between the extrinsic semiconductor and intrinsic semiconductor, semiconductor diode, the application of junction diode as a rectifier, etc. There are exercises for the students to solve at the end of the chapter.
Chapter 15 – Communication Systems
This is the last chapter and consists of 10 important topics. We all know that the three basic elements of communication include the transmitter, channel, and the receiver. This chapter explains the role of each element in details. It also talks about the bandwidth of signals, the bandwidth of transmission medium, the necessity of modulation, amplitude modulation, production and detection of amplitude modulated wave, propagation of electromagnetic waves, etc. After a thorough explanation of the topics, there are exercises to solve at the end of the chapter.
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NCERT Class 12 Physics Chapter wise Solutions - Free PDF Download