# NCERT Solutions for Class 12-science Physics CBSE

Your Physics CBSE Class 12 Science syllabus takes you through a journey of science learning which makes you aware of how things work. But the journey becomes difficult when you confront hurdles such as solving tricky numericals and understanding complex concepts. Class 12 Physics NCERT solutions can be your support system along with other learning materials.

On TopperLearning, get free access to NCERT solutions for your Class 12 Physics exam preparation. These solutions are prepared by our Physics expert teachers. In your exam, marks are allocated for accurate steps to justify answers. Revise our step-wise solutions to understand the steps used by the experts for solving problems.

Learn the application of ohm’s law. Get deeper into the concept of AC circuits. Find out what happens in a magnetic field and how you can predict scenarios with the help of findings by famous Physicists. Be thoroughly clear about Physics concepts with our chapter-wise Class 12 Physics NCERT solutions. Utilise additional resources such as CBSE Class 12 Science sample papers and previous years’ papers to practise well for your board exam preparation.

Updated NCERT Textbook Solutions Coming Soon!

## NCERT solutions for CBSE Class 12 Physics

### Chapter 1 - Electric Charges and Field

NCERT solutions for CBSE Class 12 Chapter a will help you with revision of concepts such as Coloumb’s law-force between two point charges, electric field lines, basic properties of electric charge, etc. Study the expert solutions to understand how to find the force between two charged spheres or how to calculate the magnitude of torque acting on an electric dipole.

### Chapter 2 - Electrostatic Potential and Capacitance

Through the chapter solutions, revise topics such as electric potential, conductors, capacitors, insulators, polarisation, electrostatic energy, potential energy, kinetic energy, etc. Learn the steps to calculate electric potential as per given data in a problem. Also, find out how to find capacitance of a capacitor and how to calculate the energy stored in a capacitor.

### Chapter 3 - Current Electricity

This is an important chapter in your Class 12 Science syllabus which covers important topics like Ohm’s law, Kirchhoff’s rules, potentiometer, cells, internal resistance, electric currents in conductors, and so on. Refer to the solutions by Physics experts to understand how to calculate the maximum current that can be drawn from a battery or how much time it will take for an electron to drift from one end of the wire to the other end.

### Chapter 4 - Moving charges and Magnetism

In this chapter, you get to learn about Ampere’s Circuital law, magnetic dipole, motion in a magnetic field, solenoid, etc. Through the NCERT solutions, get step-by-step answers on how to find the magnitude of a magnetic field. Also, understand the application of concepts such as magnetic torque, centripetal force, force between two wires, etc. for finding answers to textbook questions.

### Chapter 5 - Magnetism and Matter

Use the NCERT solutions for Chapter 5 to learn more about the concept of magnetism and matter. Understand how a bar magnet works and what is the significance of Gauss’s Law. Get answers on earth’s magnetism. Find out about the magnetic properties of materials and learn to solve problems related to magnetic moment.

### Chapter 6 - Electromagnetic Induction

In this chapter, study about Faraday’s law of induction, magnetic flux, eddy currents, Lenz’s law, induced electromotive force, and more. Our Physics experts will help you with using Lenz’s law to predict the direction of the induced current as per the problem situations. Also, learn to calculate emf or magnitude of induced current as per given data.

### Chapter 7 - Alternating Current

This chapter will take you through concepts such as resonance, resistance of a circuit, LC oscillations, power in AC circuits, etc. With the help of NCERT Physics Class 12 Chapter 7 solutions, you can revise methods to find the rms value of current in a circuit. Also, learn to calculate angular frequency of free oscillations in a circuit.

### Chapter 8 - Electromagnetic Waves

In the chapter, revise the concept of displacement current and how to solve problems related to this concept. Study about electromagnetic waves and learn the steps to find out the frequency of electromagnetic waves generated by an oscillator. Find answers to questions on concepts related to the electromagnetic spectrum such as X-rays, infrared, radio waves, etc.

### Chapter 9 - Ray Optics and Optical Instruments

NCERT solutions for this chapter covers topics such as reflection of light, refraction of light, spherical mirrors, power of lens, optical fibres, and more. Learn about the working principle of optical instruments such as astronomical telescope and microscope. Use the expert solutions to learn to use the lens formula and lensmaker’s formula for solving problems present in your CBSE Class 12 NCERT textbook.

### Chapter 10 - Wave Optics

This CBSE Class 12 chapter introduces you to topics like Huygens’s Principle, Young’s double slit experiment, polarisation, interference, diffraction, and more. Accurate NCERT textbook solutions prepared by our experts will help you to practise problems related to Young’s experiment, Brewster’s law, Doppler formula, and more.

### Chapter 11 - Dual nature of radiation and matter

With the support of NCERT solutions, understand Chapter 11 concepts such as Photoelectric effect, Einstein’s photoelectric equation, electron emission, wave nature of matter, dual nature of radiation, the de Brogile wavelength, etc. Learn the steps to calculate the value of Planck’s constant for an experiment on photoelectric effect or find solutions related to work function for metals as per given data.

### Chapter 12 - Atoms

Through the chapter solutions for Chapter 12, clear your doubts related to the alpha-particle trajectory, spectral series, Rutherford’s nuclear model of atom, Thomson’s model of an atom, Bohr model of the hydrogen atom, and more. Also, revise the textbook solutions to learn about the differences between Rutherford’s model and Thomson’s model, etc.

### Chapter 13 - Nuclei

In this chapter, study the structure of the nucleus by learning about its size, stability, and mass. Learn about phenomena related to the nuclei such as radioactivity, gamma emission, etc. Our Physics expert teachers have presented step-wise answers to textbook questions from this chapter on atomic masses, beta emission, nuclear fusion, fission, and more.

### Chapter 14 - Semiconductor Electronics: Materials, Devices and Simple Circuits

This chapter teaches you about semiconductor devices through concepts such as p-n junction formation, integrated circuits, Zener diode, logic gates, intrinsic semiconductor, extrinsic semiconductor, etc. In this chapter, you will find solutions to questions related to logic operations in circuits, dynamic resistance in a p-n junction diode, voltage gain in a transistor amplifier, and more.

### Chapter 15 - Communication Systems

Study the NCERT textbook solutions in this chapter to understand how communication systems work. Understand concepts related to communication systems including amplitude modulation, bandwidth of signals, propagation of electromagnetic waves, etc. Also, revise topics such as ground waves, space waves, sky waves, surface waves, digital signals, and amplitude modulated waveform.

## Why NCERT Solutions for Class 12 Science Physics are important?

Physics is one of most important subjects in Class 12. You need thorough clarity of concepts to score excellent marks in Physics. Generally, students get stressed when they come across the complexity of concepts. NCERT textbooks are prescribed for CBSE Class 12 Science exam preparation. With the help of NCERT solutions for Physics, you can ease your stress levels and prepare more comfortably for your exams.

Physics Class 12 concepts such as electromagnetic waves, nuclear fission, electric field lines, earth magnetism, etc. can be easily revised with NCERT solutions. You may have to practise certain Physics concepts repeatedly to grasp the underlying concept. The Class 12 Science Physics syllabus is also important for your JEE preparation. If you get clarity of your Class 12 Physics concepts, it will give you some cushion for entrance exam preparations.

Take less stress and work more confidently towards your Physics board exam preparation with NCERT solutions for Class 12 Physics. Your sincere efforts will pay off when you revise the solutions and try attempting Physics questions through mock tests.

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