JKBOSE Class 12 Physics Syllabus 2026-27: Unit-Wise Topics, Marks & Exam Pattern

Particulars

Details

Board

JKBOSE / Jammu and Kashmir Board

Class

12

Subject

Physics

Academic Session

2026-27

Theory Marks

70

Practicals

30

Total Marks

100

Time Allowed

3 Hours

Total Units

9

Physics Syllabus

Unit I: Electrostatics

Electric Charges and Fields

Electrostatic Potential and Capacitance

Unit II: Current Electricity

Current Electricity

Unit III: Magnetic Effects of Current and Magnetism

Moving Charges and Magnetism

Magnetism and Matter

Unit IV: Electromagnetic Induction and Alternating Currents

Electromagnetic Induction

Alternating Current

Unit V: Electromagnetic Waves

Electromagnetic Waves

Unit VI: Optics

Ray Optics and Optical Instruments

Wave Optics

Unit VII: Dual Nature of Radiation and Matter

Dual Nature of Radiation and Matter

Unit VIII: Atoms and Nuclei

Atoms

Nuclei

Unit IX: Electronic Devices

Semiconductor Electronics

Unit

Marks

Chapter

Topics Covered

I. Electrostatics

9

Electric Charges and Fields

Electric charges, conservation of charge, Coulomb's law, superposition principle, continuous charge distribution; electric field and field lines; electric dipole and torque on a dipole in a uniform field; electric flux; Gauss's theorem and its applications to an infinite straight wire, infinite plane sheet and thin spherical shell

Electrostatic Potential and Capacitance

Electric potential and potential difference due to a point charge, dipole and system of charges; equipotential surfaces; potential energy of two point charges and of a dipole; conductors and insulators; dielectrics and polarization; capacitors and series and parallel combinations; parallel plate capacitor with and without dielectric; energy stored in a capacitor

II. Current Electricity

7

Current Electricity

Electric current, drift velocity, mobility; Ohm's law; V-I characteristics for linear and non-linear elements; electrical energy and power; resistivity and conductivity; temperature dependence of resistance; internal resistance, potential difference and emf of a cell; Kirchhoff's rules; Wheatstone bridge

III. Magnetic Effects of Current and Magnetism

9

Moving Charges and Magnetism

Magnetic field, Oersted's experiment; Biot-Savart law and circular loop; Ampere's law and long straight wire; solenoid; force on a moving charge in magnetic and electric fields; force on a current-carrying conductor; force between parallel conductors and definition of ampere; torque on a current loop; magnetic dipole moment; moving coil galvanometer and its conversion into ammeter and voltmeter

Magnetism and Matter

Bar magnet and equivalent solenoid; field due to a bar magnet on its axis and perpendicular to it; torque on a magnetic dipole; field lines; para-, dia- and ferromagnetic substances; magnetization; effect of temperature

IV. Electromagnetic Induction and Alternating Currents

9

Electromagnetic Induction

Faraday's laws; induced emf and current; Lenz's law; self and mutual induction

Alternating Current

Peak and RMS values; reactance and impedance; LCR series circuit; resonance; power in AC circuits; power factor; wattless current; AC generator; transformer

V. Electromagnetic Waves

3

Electromagnetic Waves

Displacement current; electromagnetic waves and their characteristics; transverse nature; electromagnetic spectrum from radio waves to gamma rays and their uses

VI. Optics

14

Ray Optics and Optical Instruments

Reflection; spherical mirrors; mirror formula; refraction; total internal reflection; optical fibres; refraction at spherical surfaces; lenses and thin lenses in contact; prism; microscopes and astronomical telescopes, including reflecting and refracting telescopes and their magnifying powers

Wave Optics

Wave fronts; proof of the laws of reflection and refraction; interference; fringe width and final expression; coherent sources and sustained interference; diffraction due to a single slit; width of central maxima

VII. Dual Nature of Radiation and Matter

4

Dual Nature of Radiation and Matter

Dual nature of radiation; photoelectric effect; Hertz and Lenard's observations; Einstein's photoelectric equation; experimental study of the photoelectric effect; matter waves and de Broglie relation

VIII. Atoms and Nuclei

8

Atoms

Alpha-particle scattering experiment; Rutherford's model; Bohr model of the hydrogen atom, including radius, velocity and energy in the nth orbit; hydrogen line spectra

Nuclei

Composition and size of the nucleus; nuclear force; mass-energy relation; mass defect; binding energy per nucleon and its variation with mass number; nuclear fission and fusion

IX. Electronic Devices

7

Semiconductor Electronics

Energy bands in conductors, semiconductors and insulators; intrinsic and extrinsic semiconductors; p-type and n-type semiconductors; p-n junction; diode I-V characteristics in forward and reverse bias; diode as a rectifier

70

Total theory marks

Section

Question Type

Questions

Marks Each

Total Marks

Section A

Objective/MCQ

10

1

10

Section B

Very Short Answer (20 to 30 words)

9

2

18

Section C

Short Answer (100 to 150 words)

9

3

27

Section D

Long Answer with Internal Choice (150 to 200 words)

3

5

15

Total

31 Questions

70