Syllabus update of XII CBSE Physics for session-2022-23

As CBSE has released syllabus for session-2022-23 for XII, students are curious to know about changes & major features of this syllabus.
We were expecting that CBSE will add the deleted portion of syllabus for session 2022-23, but apart from that CBSE made some amendments also, which are worth noting.”

Major deletions:

• • Potentiometer is totally removed from theory as well as practical.
  • Cyclotron is not included.
  • Electromagnets and their applications are not included.
  • Scattering and its applications- blue colour of sky and reddish appearance of Sun at sunrise and sunset are excluded.
  • Resolving powers of telescope and microscope along with polarization & Malus law are kept excluded.
  • Radioactivity along with mean life & half-life remain excluded.
  • Optoelectronic devices- photo diode, LED & solar cell are removed, as well as Zener diode, transistor & logic gates are not included.

 

Special features Additions:

• Some of the derivations are replaced by direct formula application, such as:

  • Expression for energy stored by capacitor.
  • Expression for fringe width in YDSE.

• Quantitative (numerical) treatments are replaced by qualitative treatments:

  • Magnetic field due to solenoid.
  • Solenoid as bar magnet.
  • Magnetic dipole derivations.
  • Transverse nature of EMW
  • Width of central maxima in diffraction pattern
  • Hydrogen line spectra
  • Semiconductors & insulators

• Changes in practical syllabus:

  • Two practical’s, to find focal lengths for concave & convex mirrors are added back.
  • One more practical is added: to find refractive index of a liquid using concave mirror.