NEB Class 11 and 12 Physics New Curriculum and Syllabus - 2081 - Note Library


NEB Class 11 and 12 Physics New Curriculum and Syllabus - 2081

NEB Class 11 and New Syllabus updated neb

 This curriculum is tailored for grade 11 and 12 students in the science stream, recognizing their varied aspirations. Some may pursue further studies in specialized scientific fields, while others might opt for technical, vocational, or different academic paths. The curriculum aims to impart a foundational understanding of the basic scientific laws and principles that shape our world. It is designed to cultivate scientific knowledge, skills, and attitudes essential for secondary education (grades 11-12), aligning with national objectives regardless of students' future academic or career choices.

Class 11 & 12 Unitwise Summary - NEB

Chapterwise Summary of Physics (NEB syllabus Of Class 11 and 12)

Class 11Class 12


1. Physical quantities1. Rotational dynamics
2. Vectors 2. Periodic motion
3. Kinematics3. Fluid statics
5. Work, energy and power 
6. Circular motion 
7. Gravitation 
8. Elasticity 

Heat and Thermodynamics

9. Heat and temperature4. First law of thermodynamics
10. Thermal expansion5. Second law of thermodynamics
11. Quantity of heat 
12. Rate of heat flow 
13. Ideal gas 

Wave and optics

14. Reflection at curved mirror6. Wave motion
15. Refraction at plane surfaces7. Mechanical waves
16. Refraction through prisms8. Wave in pipes and strings
17. lenses9. Acoustic phenomena
18. Dispersion10. Nature and propagation of light
 11. Interference
 12. Diffraction
 13. Polarization

Electricity and Magnetism

19. Electric charges14. Electrical circuits
20. Electric field15. Thermoelectric effects
21. Potential, potential difference and potential energy16. Magnetic field
22. Capacitor17. Magnetic properties of materials
23. DC circuits18. Electromagnetic Induction
 19. Alternating currents

Modern physics

24. Nuclear physics20. Electrons
25. Solids21. Photons
26. Recent trends in physics22. Semiconductor devices
 23. Quantization of energy
 24. Radioactivity and nuclear reaction
 25. Recent trends in physics

NEB class 11 Physics syllabus



1. Physical quantities (3 hour)1.1. Precision and significant figures. Dimensions and uses of dimensional analysis.
2. Vectors (4 hour)

2.1.  Triangle, parallelogram and polygon laws of vectors

2.2.  Resolution of vectors; Unit vectors

2.3.  Scalar and vector products.

3. Kinematics (5 hour)

3.1 Instantaneous velocity and acceleration

3.2  Relative velocity

3.3  Equation of motion(graphical treatment)

3.4  Motion of a freely falling body

3.5  Projectile motion and its applications.

4.Dynamics (6 hour)

4.1  Linear momentum, Impulse

4.2  Conservation of linear momentum

4.3  Application of Newton’s laws

4.4  Moment, torque and equilibrium

4.5  Solid friction: Laws of solid friction and their verifications.

5. Work, energy and power (6 hour)

5.1 Work done by a constant force and a variable force

5.2 Power

5.3 Work-energy theorem; Kinetic and potential energy

5.4 Conservation of Energy

5.5 Conservative and non-conservative forces

5.6 Elastic and inelastic collisions

6. Circular motion (6 hour)

6.1 Angular displacement, velocity and acceleration

6.2 Relation between angular and linear velocity and acceleration

6.3 Centripetal acceleration 6.4 Centripetal force

6.7 Conical pendulum

6.8 Motion in a vertical circle 

6.9 Applications of banking.

7. Gravitation (10 hour)

7.1 Newton’s law of gravitation

7.2 Gravitational field strength

7.3 Gravitational potential; Gravitational potential energy

7.4 Variation in value of ‘g’ due to altitude and depth

7.5 Centre of mass and center of gravity 

7.6 Motion of a satellite: Orbital velocity and time period of the satellite

7.7 Escape velocity

7.8 Potential and kinetic energy of the satellite

7.9 Geostationary satellite 7.10 GPS

8. Elasticity (5 hour)

8.1 Hooke’s law: Force constant

8.2 Stress; Strain; Elasticity and plasticity

8.3 Elastic modulus: Young modulus, bulk modulus, shear modulus

8.4 Poisson’s ratio

8.5 Elastic potential energy.

Heat and Thermodynamics

9. Heat and temperature (3 hour)

9.1  Molecular concept of thermal energy, heat and temperature, and cause and direction of heat flow

9.2  Meaning of thermal equilibrium and Zeroth law of thermodynamics.

9.3  Thermal equilibrium as a working principle of mercury thermometer.

10. Thermal expansion (4 hour)

10.1 Linear expansion and its measurement

10.2 Cubical expansion, superficial expansion and its relation with linear expansion

10.3 Liquid Expansion: Absolute and apparent

10.4 Dulong and Petit method of determining expansivity of liquid

11. Quantity of heat (6 hour)

11.1 Newton’s law of cooling

11.2 Measurement of specific heat capacity of solids and liquids

11.3 Change of phases: Latent heat

11.4 Specific latent heat of fusion and vaporization

11.5 Measurement of specific latent heat of fusion and vaporization

11.6 Triple point

12. Rate of heat flow (5 hour)

12.1 Conduction: Thermal conductivity and measurement

12.2 Convection

12.3 Radiation: Ideal radiator 

12.4 Black- body radiation 

12.5 Stefan – Boltzmann law.

13. Ideal gas (8 hour)

13.1 Ideal gas equation

13.2 Molecular properties of matter

13.3 Kinetic-molecular model of an ideal gas

13.4 Derivation of pressure exerted by gas,

13.5 Average translational kinetic energy of gas molecule

13.6 Boltzmann constant, root mean square speed

13.7 Heat capacities: gases and solids.

Wave and optics

14. Reflection at curved mirror (2 hour)

14.1 Real and Virtual images. 

14.2 Mirror formula

15. Refraction at plane surfaces (4 hour)

15.1 Laws of refraction: Refractive index

15.2 Relation between refractive indices 

15.3 Lateral shift

15.4 Total internal reflection.

16. Refraction through prisms (3 hour)

16.1 Minimum deviation condition

16.2 Relation between Angle of prism, minimum deviation and refractive index

16.3 Deviation in small angle prism.

17. lenses (3 hour)

17.1 Spherical lenses, angular magnification

17.2 Lens maker’s formula 

17.3 Power of a lens

18. Dispersion (3 hour)

18.1 Pure spectrum and dispersive power

18.2 Chromatic and spherical aberration 

18.3 Achromatism and its applications

Electricity and Magnetism

19. Electric charges (3 hour)

19.1 Electric charges

19.2 Charging by induction

19.3 Coulomb’s law- Force between two point charges

19.4 Force between multiple electric charges.

20. Electric field (3 hour)

20.1 Electric field due to point charges; Field lines

20.2 Gauss Law: Electric Flux

20.3 Application of Gauss law: Field of a charge sphere, line charge, charged plane conductor

21. Potential, potential difference and 

potential energy (4 hour)

21.1 Potential difference, Potential due to a point, Charge, potential energy, electron volt

21.2 Equipotential lines and surfaces 

21.3 Potential gradient

22. Capacitor (7 hour)

22.1 Capacitance and capacitor 

22.2 Parallel plate capacitor

22.3 Combination of capacitors 

22.4 Energy of charged capacitor

22.5 Effect of a dielectric Polarization and displacement.

23. DC circuits (10 hour)

23.1 Electric Currents; Drift velocity and its relation with current

23.2 Ohm’s law; Electrical Resistance; Resistivity; Conductivity

23.3 Current-voltage relations; Ohmic and Non-Ohmic resistance

23.4 Resistances in series and parallel,

23.5 Potential divider

23.6 Electromotive force of a source, internal resistance

23.7 Work and power in electrical circuits

Modern physics

24. Nuclear physics (6 hour)

24.1 Nucleus: Discovery of nucleus

24.2 Nuclear density; Mass number; Atomic number

24.3 Atomic mass; Isotopes

24.4 Einstein’s mass-energy relation

24.5 Mass Defect, packing fraction, BE per nucleon

24.6 Creation and annihilation

24.7 Nuclear fission and fusion, energy released

25. Solids (3 hour)

25.1 Energy bands in solids (qualitative ideas)

25.2 Difference between metals, insulators and semi-conductors using band theory

25.3 Intrinsic and extrinsic semi- conductors

26. Recent trends in physics (6 hour)

26.1 Particle physics: Particles and antiparticles, Quarks (baryons and meson) and leptons (neutrinos)

26.2 Universe: Big Bang and Hubble law: expansion of the Universe, Dark matter, Black Hole and gravitational wave

NEB class 12 Physics syllabus



1. Rotational dynamics

1.1  Equation of angular motion, Relation between linear and angular kinematics

1.2  Kinetic energy of rotation of rigid body

1.3  Moment of inertia; Radius of gyration

1.4  Moment of inertia of a uniform rod

1.5  Torque and angular acceleration for a rigid body

1.6  Work and power in rotational motion

1.7  Angular momentum, conservation of angular momentum.

2. Periodic motion

2.1  Equation of simple harmonic motion (SHM)

2.2  Energy in SHM

2.3  Application of SHM: vertical oscillation of mass suspended from coiled spring

2.4  Angular SHM, simple pendulum

2.5  Oscillatory motion: Damped oscillation, Forced oscillation and resonance.

3. Fluid statics

3.1 Fluid statics: Pressure in a fluid; Buoyancy

3.2 Surface tension: Theory of surface tension; Surface energy

3.3  Angle of contact, capillarity and its applications

3.4  FluidDynamics:Newton’s formula for viscosity in a liquid; Coefficient of viscosity

3.5  Poiseuille’s formula and its application

3.6  Stokes law and its applications

3.7  Equation of continuity and its applications

3.8  Bernoulli’s equation and its applications.

Heat and Thermodynamics

4. First law of thermodynamics

4.1  Thermodynamic systems

4.2  Work done during volume change

4.3  Heat and work; Internal energy and First law of thermodynamics

4.4  Thermodynamic processes: Adiabatic, isochoric, isothermal and isobaric

4.5  Heat capacities of an ideal gas at constant pressure and volume and relation between them

4.6  Isothermal and Adiabatic processes for an ideal gas.

5. Second law of thermodynamics

5.1  Thermodynamic systems and direction of thermodynamic processes

5.2  Second law of thermodynamics

5.3  Heat engines

5.4  Internal combustion engines: Otto cycle, Diesel cycle; Carnot cycle

5.5  Refrigerator

5.6  Entropy and disorder (introduction only)

Wave and optics

6. Wave motion

6.1 Progressive waves

6.2 Mathematical description of a wave

6.3 Stationary waves

7. Mechanical waves

7.1  Speed of wave motion; Velocity of sound in solid and liquid

7.2  Velocity of sound in gas

7.3  Laplace’s correction

7.4  Effect of temperature, pressure, humidity on velocity of sound.

8. Wave in pipes and strings

8.1  Stationary waves in closed and open pipes

8.2  Harmonics and overtones in closed and open organ pipes

8.3  End correction in pipes

8.4  Velocity of transverse waves along a stretched string

8.5  Vibration of string and overtones

8.6  Laws of vibration of fixed string.

9. Acoustic phenomena

9.1  Sound waves: Pressure amplitude

9.2  Characteristics of sound: Intensity; loudness, quality and pitch 

9.3  Doppler’s effect.

10. Nature and propagation of light

10.1 Huygen’s principle

10.2 Reflection and Refraction according to wave theory

11. Interference

11.1 Phenomenon of Interferences: Coherent sources

11.2 Young’s double slit experiment.

12. Diffraction

12.1 Diffraction from a single slit

12.2 Diffraction pattern of image; Diffraction grating

12.3 Resolving power of optical instruments.

13. Polarization

13.1 Phenomenon of polarization

13.2 Brewster’s law; transverse nature of light

13.3 Polaroid.

Electricity and Magnetism

14. Electrical circuits

14.1 Kirchhoff’s law

14.2 Wheatstone bridge circuit; Meter bridge

14.3 Potentiometer: Comparison of e.m.f., measurement of internal resistances of a cell

14.4 Super conductors; Perfect conductors

14.5 Conversion of galvanometer into voltmeter and ammeter; Ohmmeter 

14.6 Joule’s law

15. Thermoelectric effects

15.1 Seebeck effect; Thermocouples 

15.2 Peltier effect: Variation of thermoelectric e.m.f. with temperature; Thermopile

16. Magnetic field

16.1 Magnetic field lines and magnetic flux; Oersted’s experiment

16.2 Force on moving charge; Force on a conductor

16.3 Force and Torque on rectangular coil, Moving coil galvanometer

16.4 Hall effect

16.5 Magnetic field of a moving charge

16.6 Biot and Savart law and its application to (i) a circular coil (ii) a long straight conductor (iii) a long solenoid

16.7 Ampere’s law and its applications to (i) a long straight conductor (ii) a straight solenoid (ii) a toroidal solenoid

16.8 Force between two parallel conductors carrying current- definition of ampere

17. Magnetic properties of materials

17.1 Magnetic field lines and magnetic flux

17.2 Flux density in magnetic material; Relative permeability; Susceptibility 

17.3 Hysteresis

17.4 Dia,-para- and ferro-magnetic materials

18. Electromagnetic Induction

18.1 Faraday’s laws; Induced electric fields

18.2 Lenz’s law, Motional electromotive force

18.3 A.C. generators; Eddy currents

18.4 Self-inductance and mutual inductance

18.5 Energy stored in an inductor 

18.6 Transformer.

19. Alternating currents

19.1 Peak and rms value of AC current and voltage

19.2 AC through a resistor, a capacitor and an inductor

19.3 Phasor diagram

19.4 Series circuits containing combination of resistance, capacitance and inductance

19.5 Series resonance, quality factor

19.6 Power in AC circuits: power factor

Modern physics

20. Electrons

20.1 Milikan’s oil drop experiment,

20.2 Motion of electron beam in electric and magnetic fields

20.3 Thomson’s experiment to determine specific charge of electrons

21. Photons

21.1 Quantum nature of radiation

21.2 Einstein’s photoelectric equation; Stopping potential

21.3 Measurement of Plank’s constant

22. Semiconductor devices

22.1 P-N Junction

22.2 Semiconductor diode: Characteristics in forward and reverse bias

22.3 Full wave rectification

22.5 Logic gates; NOT, OR, AND, NAND and NOR.

23. Quantization of energy

23.1 Bohr’s theory of hydrogen atom

23.2 Spectral series; Excitation and ionization potentials

23.3 Energy level; Emission and absorption spectra

23.4 De Broglie Theory; Duality

 23.5 Uncertainly principle

 23.6 X-rays: Nature and production; uses

 23.7 X-rays diffraction, Bragg’s law.

24. Radioactivity and nuclear reaction

24.1 Alpha-particles; Beta-particles, Gamma rays

24.2 Laws of radioactive disintegration

24.3 Half-life, mean-life and decay constant 

24.4 Geiger-Muller Tube 

24.5 Carbon dating

24.6 Medical use of nuclear radiation and possible health hazard.

25. Recent trends in physics

25.1 Surface waves: Rayleigh and Love waves Internal waves: S and P-waves

Wave patterns of Gorkha Earthquake 2015

25.2 Gravitational Wave Nanotechnology Higgs Boson

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