CBSE CLASS 12 PHYSICS TERM-2 SYLLABUS 2021-2022

CBSE Class XII

PHYSICS SYLLABUS

 Term II (Theory)

2021-2022

Time: 2 Hours                                                                                                                                            Max Marks: 35


 

S.NO CHAPTER-WISE No of Periods Marks
Unit–V Electromagnetic Waves  

02

 

 

 

17

Chapter–8: Electromagnetic Waves
Unit–VI Optics  
18
Chapter–9: Ray Optics and Optical Instruments
Chapter–10: Wave Optics
Unit–VII Dual Nature of Radiation and Matter  

07

 

 

 

11

Chapter–11: Dual Nature of Radiation and Matter
Unit–VIII Atoms and Nuclei  

11

Chapter–12: Atoms
Chapter–13: Nuclei
Unit–IX Electronic Devices  

 

07

 

 

7

Chapter–14: Semiconductor -Electronics: Materials, Devices and Simple Circuits
Total 45 35

 

 CHAPTER WISE

Unit V:  ELECTROMAGNETIC WAVES                                                                          2 Periods

Chapter–8: Electromagnetic Waves

  • Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only).
  • Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.



Unit VI: OPTICS                                                                                                                      18Periods

Chapter–9: Ray Optics and Optical Instruments

Ray Optics:

  • Refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lensmaker’s formula, magnification, power of a lens, a combination of thin lenses in contact, refraction of light through a prism.
  • Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

Chapter–10: WAVE OPTICS

Wave optics:

  • Wavefront and Huygen’s principle, reflection and refraction of plane wave at a plane surface using wavefronts. Proof of laws of reflection and refraction using Huygen’s principle.
  • Interference, Young’s double-slit experiment and expression for fringe width, coherent sources and sustained interference of light, diffraction due to a single slit, width of central maximum.

Unit VII:  DUAL NATURE AND RADIATION OF MATTER                                   7 Periods

Chapter–11: Dual Nature of Radiation and Matter

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



Unit VIII: ATOMS AND NUCLEI                                                                                       11Periods

Chapter–12: Atoms

Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum.

Chapter–13: Nuclei

Composition and size of nucleus Nuclear force Mass-energy relation, mass defect, nuclear fission, nuclear fusion.

Unit IX: ELECTRONIC DEVICES                                                                                      7 Periods

 Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Semiconductor diode – I-V characteristics in forward and reverse bias, diode as a rectifier; Special purpose p-n junction diodes: LED, photodiode, solar cell.

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