NCERT Solutions For Class 12 Physics

# NCERT Solutions For Class 12 Physics

NCERT Solutions for Class 12 Physics is the ideal study material for students who have trouble answering questions from the textbook. The primary goal of developing solutions is to make exam preparation easier for pupils. Subject matter experts write the NCERT Solutions in an easy-to-understand format to provide students the confidence they need to take the board test without worry. With the help of this solution, students will better understand the concepts depending on the marks weightage assigned by the CBSE.

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The solutions to all chapters are accessible here for CBSE students to review. Follow the links below to access free NCERT Physics Solutions (Class 12) Chapters 1-15. The solutions are available for free online viewing or download in PDF format. Click the “Obtain PDF” button at the top of each chapter page mentioned below to download a PDF of the NCERT Solutions for Class 12 Physics for that Chapter.

NCERT Solutions for Class 12 Physics Chapter wise:

Students may easily solve textbook questions by referring to the NCERT Solutions provided at Infinity Learn. Download NCERT Solutions for Class 12 Physics to begin your board exam preparations.

NCERT Solutions Class 12 Physics

The solutions cover every Chapter in the most recent NCERT textbook. To deliver accurate information to the students, the solutions explain various fundamental concepts. Students can get the NCERT solutions our experts provide online and offline.

NCERT Physics Class 12 Topics and Exercises of Chapters

Chapter 1: Electric Charges and Fields: Term 1

This Chapter will assist you in resolving questions involving the calculation of forces between two charged particles separated by a distance.

Chapter 2: Electrostatic Potential and Capacitance – Term I

Using the solutions at Infinity Learn, students will have a basic understanding of the electrostatic potential. To help students perform well on board exams, these ideas and numerals are answered in the simplest way possible. Dielectrics and electric polarization, capacitors and capacitance, series and parallel capacitors, and the capacitance of a parallel plate capacitor with and without dielectric medium between the plates.

Chapter 3: Current Electricity – Term I

It will allow you to easily convert complex circuits into simple series and parallel circuits. The concepts of meter bridge or potentiometer are briefly explained in this Chapter. Numerous problems based on these concepts are available for practice at the end of the Chapter.

Ohm’s law, electrical resistance, V-I characteristics (linear and nonlinear), electrical energy and power, electrical resistivity, and conductivity; temperature dependency of resistance. The Internal resistance of a cell, potential difference, and emf of a cell, the combination cells-combination and in parallel, Kirchhoff’s laws and simple applications, Wheatstone bridge, meter bridge (qualitative ideas only). Principle and applications of the potentiometer for measuring potential difference and comparing EMF of two cells; measurement of a cell’s internal resistance (qualitative ideas only).

Chapter 4: Moving Charges and Magnetism – Term I

Students can learn about various graphs, diagrams, drawings, and examples from everyday life to aid with their retention of information. The origins of notions like Ampere’s Circuital Law and forces between two current-carrying wires are thoroughly explored. At the end of the Chapter, problems based on these principles carry a higher grade and should be practiced regularly.

Concept of a magnetic field, Oersted’s experiment. Boit – Savart law and its application to the current-carrying circular loop. The application of Ampere’s law to an indefinitely long straight wire. Force on a moving charge in homogenous magnetic and electric fields, straight and toroidal solenoids (only qualitative treatment). In a uniform magnetic field, the force on a current-carrying conductor, the force between two parallel current-carrying conductors—definition of an ampere, torque experienced by a current loop in a moving coil galvanometer—current sensitivity and conversion to ammeter and voltmeter; uniform magnetic field.

Chapter 5: Magnetism and Matter – Term I

This Chapter contains questions on numerous variables, how to calculate the earth’s magnetic field, and the effects of compass direction at the poles. Want to know why the earth’s magnetic field fluctuates from place to place in space? Infinity Learn has NCERT Solutions for you to use.

The magnetic dipole moment of a revolving electron, the magnetic dipole moment of a current loop, the bar magnet as an equivalent solenoid, magnetic field lines, the earth’s magnetic field, and magnetic components

Chapter 6: Electromagnetic Induction – Term I

In this Chapter, the concepts of electricity and magnetism are combined. Definitions and exercises based on these rules are presented methodically to assist students in grasping the topics.

The topics covered in this Chapter are listed below:

• Electromagnetic induction
• Induced EMF and current
• Lenz’s Law, Eddy currents.
• Self and mutual induction.

Chapter 7: Alternating Current

This Chapter discusses the AC voltage applied to a resistor, inductor, capacitor, and series LCR circuit. The textbook’s varied pictures and graphs assist you in fully comprehending the idea. Students can answer the complicated questions and problems that will arise on the board exams if they study this Chapter regularly. The transformer is the key concept here.

The topics covered in this Chapter are listed below:

• Alternating currents,
• Peak and RMS value of alternating current/voltage
• Reactance and impedance;
• LC oscillations (qualitative treatment only),
• LCR series circuit, resonance;
• Power in AC circuits.
• AC generator and transformer.

NCERT Class 12 Physics Solutions for Chapter 7: Alternating Current

Chapter 8: Electromagnetic Waves – Term II

The physical attraction between electrically charged particles is known as electromagnetism. The conduction current’s RMS value and the parallels between displacement and conduction current are briefly discussed here.

The characteristics of electromagnetic waves are, Electromagnetic waves have a transverse nature (just qualitative notions). The electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, and gamma rays) and basic information on its applications.

Chapter 9: Ray Optics and Optical Instruments – Term II

Students will use the ray picture to study the processes of light refraction, reflection, and dispersion in this Chapter. Picture production is well discussed in this Chapter utilizing the rules of reflection and refraction. This Chapter covers the construction and operation of optical equipment, including the human eye. Students will learn about natural phenomena caused by sunshine, which is crucial in exams.

• Refraction of light
• Total internal reflection and its applications
• Optical Fibers
• Refraction at spherical surfaces
• Lenses
• Thin lens formula
• Lens maker’s formula
• Magnification
• Power of a lens
• A combination of thin lenses in contact.
• Refraction of light through a prism.
• Microscopes and astronomical telescopes (reflecting and refracting) and their magnification powers are examples of optical instruments.

Chapter 10: Wave Optics – Term II

Huygens’ laws of reflection and refraction are the concept that receives the most points in this Chapter. The angular width expression and Brewster’s Law are discussed with appropriate examples to provide students with a clear understanding. The Doppler Effect is thoroughly discussed to improve students’ conceptual understanding.

Wavefronts and Huygen’s concept are used to reflect and refract plane waves at a plane surface. Interference is an experiment of Young’s double-slit and expression for the phenomenon of fringe width, coherent light sources and continuous interference of light, single-slit diffraction, and the width of the centre maximum.

Chapter 11: Dual Nature of Radiation and Matter – Term II

Electron emission, photoelectric effect, experimental effect, Einstein’s Photoelectric equation, and the wave nature of matter are all covered in this Chapter. The majority of the textbook questions are likely to be on the final exam. Students will be able to get amazing marks and achieve their career goals if they have a firm grasp of this Chapter.

Dual nature of radiation, Photoelectric effect, Hertz, and Lenard’s observations; Einstein’s photoelectric equation-particle nature of light. Experimental study about the photoelectric effect, Matter waves, wave nature of the particles, and de-Broglie relation.

Chapter 12: Atoms – Term II

The essential topic in this Chapter is the Bohr Model of the Hydrogen Atom. Students will only be able to achieve good grades if they regularly learn and revise their ideas. Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum.

Chapter 13: Nuclei – Term II

Atomic masses and nucleus composition, nucleus size, mass energy and nuclear binding energy, nuclear force, radioactivity, and nuclear energy are all treated in this Chapter. One of the greatest ways to study for board exams in Physics is to take notes and highlight significant formulas and terminology.

• Composition and size of the nucleus
• Nuclear force
• Mass-energy relation
• Mass defect
• Nuclear fission
• Nuclear fusion.

NCERT Class 12 Physics Solutions for Chapter 13: Nuclei

Chapter 14: Semiconductor Electronics: Materials, Devices, and Simple Circuits – Term II

Most of this chapter’s questions will revolve around n-type semiconductors, carriers, and dopants. Finding the output frequency of a half-wave and full-wave rectifier will be a topic of discussion. Additional tasks for determining the number of holes and electrons in indium, silicon, and arsenic atoms are included.

Conductors, semiconductors, and insulators have energy bands (qualitative ideas only), Semiconductor diode – forward and reverse bias I-V characteristics, diode as rectifier LEDs, photodiodes, and solar cells are examples of special-purpose p-n junction diodes.

NCERT Class 12 Physics Solutions for Chapter 14: Semiconductor Electronics: Materials, Devices, and Simple Circuits

CBSE Marking Scheme 2021-22

Board exams will be taken twice throughout a student’s lifetime. Class 10 is one, and Class 12 is the other. The scores earned in Class 10 assist students in understanding the topic in which they excel, and the marks earned in Class 12 assist them in planning their future. The CBSE board has divided the complete syllabus into two terms to make it easier for pupils to study all the ideas. Students would be able to comprehend the chapters worth more marks and practice them properly after seeing the CBSE board’s redesigned course structure.

The term I and Term II: CBSE Class 12 Physics Syllabus Course Structure 2021-22

 Units Term – I (Chapters) Marks I Electrostatics: Chapters- 1 and 2 17 II Current Electricity: Chapter- 3 III Magnetic Effects of Current and Magnetism: Chapters 4 and 5 18 IV Electromagnetic Induction and Alternating Currents: Chapters 6 and 7 Units Term – 2 (Chapters) Marks V Electromagnetic Waves: Chapter 8 17 VI Optics: Chapters 9 and 10 VII Dual Nature of Radiation and Matter: Chapter 11 11 VIII Atoms and Nuclei: Chapters 12 and 13 IX Electronic Devices: Chapter 14 7 Total Theory (Term – I and Term – II) 70 Practical Term – I 15 Practical Term – II 15 Total 100

Class 12 Physics NCERT Solutions

Physics NCERT Solutions for Class 12 is a more useful information resource. Extensive explanations, thorough solutions, descriptive pictures, and more are available.

Why Do Toppers Prefer Infinity Learn NCERT Solutions?

Many students say that Infinity Learn’s NCERT Solutions are the most user-friendly solutions available on the internet. Students can now easily complete the NCERT Class 12 Physics Syllabus using Infinity Learn’s solutions.

• Highly knowledgeable teachers create the answers.

Physics is a discipline that encompasses a wide range of principles with real-world applications. Students are strongly advised to consult the greatest online study material to grasp these ideas. We at Infinity Learn to curate the solutions with Class 12 students’ comprehension abilities in mind.

• It is possible to access it at any time and from any location.

The 12th-grade exam is a significant milestone in a student’s life. Regarding board exam preparation, we at Infinity Learn have developed methods to help students gain confidence in their ability to answer complicated questions easily.

Benefits of Physics NCERT Solutions Class 12

• Experienced teachers conducted research and wrote the solutions.
• In each Chapter, there are new value-based questions with answers.
• Jargon-free and simple language.
• The content has been created by the CBSE curriculum 2022-23.
• The Coverage of essential ideas is extensive.
• The most useful content for preparing for CBSE board exams.

NCERT Solutions for Class 12 Physics: A Comprehensive Analysis

The NCERT Textbooks are noted for their clarity and plain explanations of ideas. These textbooks are excellent for CBSE Class 12 students. It consists of multiple-choice questions that assess their conceptual grasp. Practice Questions for NCERT Class 12 Physics

1. Two cells of emf have their internal resistances and, respectively. Assume that the two cells are mutually supportive.
2. If the two cells are identical, each of emf and internal resistance, calculate the voltage across the external resistance.
3. Write an expression of magnetic moment associated with a current (I) carrying a circular coil of radius having turns.
4. Consider the above coil placed in the YZ plane with its center at the origin. Derive an expression for the value of the magnetic field due to it at nt.
5. Draw a circuit diagram and explain the working of a Zener diode as a dc voltage regulator with the help of its characteristics.
6. What is the purpose of heavy doping of – and -sides of a Zener diode?
7. Write the expression for the telescope’s resolving power.

Frequently Asked Questions on NCERT Solutions for Class 12 Physics

##### What role does NCERT Class 12 Physics Solutions have in exam preparation?

The questions in NCERT textbooks can be a major help in ensuring that you study properly and perform well in exams and assessments. Students can begin practicing NCERT Solutions Class 12 Physics right away, which will result in improved academic achievement in the future.

##### How to achieve good marks in Class 12 Physics?

Students can acquire excellent marks in the finals by referring to INFINITY study NCERT Solutions for Class 12 Physics. Learning and scoring well in Physics necessitates a lot of practice. To perform well and improve their question-solving ability, students must look over NCERT Solutions completely before the final exams.

##### How can I get NCERT Physics Solutions for Class 12?

To see the solutions, go to the Infinity Learn website and select NCERT Solutions, then select class 12 and then subject. These solutions provided by us cover all these concepts, with detailed explanations.

##### Do Infinity Learn NCERT Solutions for Class 12 Physics have better quality?

NCERT Solutions for Class 12 Physics are created by highly experienced topic experts who have extensive experience in the field. They curate the solutions by strictly adhering to the latest CBSE board's syllabus and norms. The questions from the NCERT textbook are addressed comprehensively so that students may understand the ideas quickly.

##### Does Infinity Learn NCERT Solutions for Class 12 Physics help students get full marks in their board exams?

The NCERT Solutions for Class 12 Physics is one of the top study materials available on the internet. When students cannot find a proper response to textbook questions, they can resort to subject-specific and chapter-specific solutions. It also enhances their capacity to respond to complex questions on board exams. Apart from the board, student will also get help in board exams.  Register to Get Free Mock Test and Study Material

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