NCERT Solutions for Class 12 Physics

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NCERT - Physics Part-I

NCERT Solutions for Class 12 Physics (Part 1) is the first thing you seek out after you face difficulty in solving Physics NCERT solutions. NCERT Class 12th Physics textbook is regarded as one of the toughest books to crack therefore, you may come across a lot of doubts in back exercise NCERT questions. Here come Goprep's NCERT Solutions for Class 12 Physics to help you practise all such questions.

The subject of Physics deals with several parts or elements of nature and other important laws. Majority of you may face problems in understanding these laws and concepts which could impact your performance in the exam. Our NCERT Solutions for Class 12th Physics will help you to understand all the topics with the latest curriculum of CBSE. Additionally, these solutions can be referred to prepare for competitive exams like JEE, BITSAT, VITEEE.

Below, we have made available complete chapter-wise CBSE Class 12 Physics Solutions. You can simply access the chapter-wise solutions of NCERT Class 12 Physics textbook from the links given below.

Class 12th

Benefits of studying with NCERT Solutions for Class 12 Physics

• Helpful for students in preparing difficult topics and concepts through self-studies.
• Handy for the candidates preparing for different competitive and entrance exams.
• NCERT Solutions for Class 12 Physics are based on the latest syllabus of CBSE.
• These solutions are presented in a lucid manner, helping students better understand the pattern of questions.
• Step-by-step explanations are provided to enable the students to prepare for different assignments.
• These solutions can be availed for free of cost and quite easily by visiting our website.
In case you have started your preparation for Class 12 Physics Board exam then you can attempt previous year question papers of Physics. Below are the links to attempt Physics question papers.

 CBSE Class 12 Physics Solved Question Papers CBSE Class 12 Physics Question Paper 2019 CBSE Class 12 Physics Question Paper 2018 CBSE Class 12 Physics Previous Year Question Papers

NCERT Solutions for Class 12 Physics (Chapter-wise Description)

Chapter 1: Electric Charges and Fields

NCERT Class 12 Physics Chapter 1- Electric Charges and Fields is centred on the concepts revolving around an electric charge and electric field. In this chapter, you will revisit the topics from earlier classes such as the difference between insulators and conductors, Coulomb’s law etc.

In addition to previous learning, we will delve deeper into the concept of electrostatic forces. Other important topics of the chapter include electric field intensity, electric field lines, electric dipole moment, torque etc.

Chapter 2: Electrostatic Potential And Capacitance

In NCERT Class 12 Physics Chapter 2- Electrostatic Potential and Capacitance, you will learn about a new topic electrostatic potential. Further, you will study about equipotential surface, potential energy in an external field, and electrostatic shielding.

Chapter 3: Current Electricity

NCERT Class 12 Physics Chapter 3- Current Electricity will provide you with in-depth information about the working of electric current. You will also learn about how the electric charge flow in metallic conductors. Further, you will revisit topics from earlier classes such as Ohm’s law, resistance, resistivity etc.

The relationship between resistivity and relaxation time, colour code of resistance, a combination of resistance etc are the most important topics of this chapter.

Chapter 4: Moving Charges And Magnetism

NCERT Class 12 Physics Chapter 4 - Moving Charges And Magnetism will help you gain in-depth knowledge about magnetic field. Key topics of this chapter are Biot-Savart’s law, Ampere’s circuital law, magnetic field due to a straight solenoid, and magnetic field due to the toroidal solenoid.

Chapter 5: Magnetism And Matter

NCERT Class 12 Physics Chapter 5 - Magnetism And Matter contain topics that are based on the concepts of the previous chapter. In this chapter, you will learn about Coulomb’s law in magnetism, magnetic field lines, torque, potential energy, oscillation of a freely suspended magnet etc.

Next, you will come across formulas of magnetism that you can easily remember from your previous knowledge of the chapter electrostatics.

Chapter 6: Electromagnetic Induction

NCERT Class 12 Physics Chapter 6 - Electromagnetic Induction consist of important laws of physics in the branch of electronics. Faraday’s law of electromagnetic induction, Lenz’s law, motional emf, Fleming’s right hand rule are the most important topics of this chapter.

Chapter 7: Alternating Current

NCERT Class 12 Physics Chapter 7 - Alternating Current is one of the most important chapters as it will help you gain knowledge about rms value of AC, mean value of AC, alternating emf, inductive reactance, power, and wattless current.

Chapter 8: Electromagnetic Waves

NCERT Class 12 Physics Chapter 8 - Electromagnetic Waves consist of topics that are in continuation to what you already studied in previous chapters. To start, you will first study the displacement current and its uses.

Later in the chapter, you will study Maxwell’s equations of electromagnetic waves, electromagnetic waves and its types, electromagnetic spectrum etc.

Chapter 9: Ray Optics And Optical Instruments

NCERT Class 12 Physics Chapter 9 - Ray Optics and Optical Instruments include various familiar topics such as reflection and its laws, mirror formula, magnification, refraction and its laws, total internal reflection, to name a few. Later in this chapter, you will study the principle of reversibility, refractive index, lens maker’s formula, Rayleigh law of scattering etc.

Chapter 10: Wave Optics

NCERT Class 12 Physics Chapter 10 - Wave Optics describes the relation between waves and rays of light. Huygens’ principle is an important law of optics, which will help you determine the shape of the wave front. In the latter half of the chapter, you will study the behaviour of a prism, lens and spherical mirror towards plane wave front.

At the brink of conclusion, this chapter will entail the law of refraction on the basis of Huygens’ wave theory.

Chapter 11: Dual Nature of Radiation and Matter

NCERT Class 12 Physics Chapter 11 - Dual Nature Of Radiation And Matter will entail topics including photoelectric effect, important terms pertaining to photoelectric effect (free electrons, electron emission, photoelectric emission etc). Later, you will come to know the effect of intensity, potential and frequency on photoelectric current.

Chapter 12: Atoms

NCERT Class 12 Physics Chapter 12: Atoms will make us recall all we had studied about atoms in earlier classes. Atom is the smallest structural unit of matter. We will discuss popular atomic models such as Rutherford’s atomic model, Bohr’s theory of hydrogen atom etc. In the latter half of this chapter, you will learn about energy level, emission spectrum, and absorption spectrum.

Chapter 13: Nuclei

NCERT Class 12 Physics Chapter 13 - Nuclei will enable you to dive deep into the knowledge about nuclei. As we already know that every atom has densely concentrated positive charge and mass at the centre forming its nucleus.

This chapter comprises various topics that will play a huge role in your higher studies. These topics include radioactivity, radioactive decay law, half-life, average life, decay constant, and radioactive displacement law.

Chapter 14: Semiconductor Electronics: Materials, Devices And Simple Circuits

NCERT Class 12 Physics Chapter 14 - Semiconductor Electronics will give you an introduction of semiconductors. Further, you will learn the differences between conductors, semiconductors, and insulators. Also, there are two types of semiconductors- intrinsic and extrinsic.

In the latter half of the chapter, you will learn about the p-n junction for the first time and formation of the depletion region. Other topics of this chapter are semiconductor diode (p-n junction diode), I-V characteristics of junction diode, diode as a half-wave rectifier/ full-wave rectifier, and optoelectronic devices.

Chapter 15: Communication Systems

NCERT Class 12 Physics Chapter 15 - Communication Systems will tell you about how signals are transmitted and received via the communication channel. There are two basic modes of communication and various terminologies used in electronic communication systems.

As you proceed further, you will study about antenna and its types,the science behind the propagation of electromagnetic waves, satellite communication, modulation, and some must-know technical terminologies.

• Is it possible to pass in CBSE Class 12 Physics exam in 2 days?

No one ever passed Physics exam in 2 days until and unless he or she is not well-versed with core concepts. CBSE Class 12 Physics Syllabus is vast and wholly conceptual, which makes scoring passing marks difficult for anyone who has not studied throughout the year.

• How to score passing marks in CBSE Class 12th Physics?

The passing percentage for CBSE 10th Physics is 33% i.e. 23 marks. In total, there are 10 units in NCERT Class 10th Physics textbook; of which Unit-6 (Optics) carries the maximum weightage of 14 marks. Unit-1, 3 and 4 have a combined weightage of 24 marks. Master these 4 units such that you do not lose a single mark in them.

The above strategy can help you achieve the passing percentage in 10th Physics CBSE exam.

• How to study for Class 12 Physics Board exam?

Physics is the toughest among all CBSE Class 12 Science subjects as it contains theoretical, conceptual, and numerical problems. On top of that, you also have to practice derivations and schematic diagrams.

Follow the study tips for CBSE Class 12 Physics given below.

• Check the CBSE Class 12 Physics Syllabus and Marking Scheme (given above).
• Create a time-table and study Physics daily for at least 1.5 hours.
• Follow the schedule throughout the academic year and study according to the syllabus only.
• Prepare smart by dedicating more hours to Unit-1,3,4, and 6.
• Manage your time well and do not procrastinate.
• Practice as many conceptual and numerical questions as possible from a reference book.
• How to score 100 marks in Class 12 CBSE Physics?

Scoring full marks in Class 12th Physics is an uphill task but if you can stick to the tips given below, you can crack Physics Board exam with full marks.

• Study notes and practice questions of all types, including conceptual, numerical, derivations, and theoretical knowledge-based questions.
• First, you should complete the syllabus from NCERT Physics textbook and then pick a reference book to study.
• You must dedicate an ample amount of time towards solving different questions from a reference book to master the concepts.

Finally, put your knowledge to test by attempting CBSE Class 12 Physics previous year papers.

• Which is the best reference book for Class 12 Physics?

Concepts of Physics by HC Verma is the best reference book to study Physics in Class 12.