DELETED PORTIONS CLASS 12 CBSE PHYSICS (20-21)

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Covid-19

DELETED PORTIONS OF CLASS 12 CBSE PHYSICS (2020-21)
CLASS XII

The following topics are deleted from the CBSE Physics Class 12 Syllabus for the year 2020-21 due to COVID-19 pandemic.

 

Topics
Chapter-1 Electric charges and fields

(Deleted portions)

Electric field due to uniformly charged thin spherical shell (field inside and outside).

Chapter-3 Current Electricity

(Deleted portions)

Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors

 

Chapter-4 Moving Charges and Magnetism

Cyclotron

Chapter-5 Magnetism and Matter

(Deleted portions)

magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole (bar magnet) in a uniform magnetic field;
Para-, dia- and ferro – magnetic substances, with examples. Electromagnets and factors affecting their strengths, permanent magnets.

Chapter-7 Alternating Current

power factor, wattless current.

Chapter 8 Electromagnetic Waves

Basic idea of displacement current,

Chapter 9 Ray Optics and Optical Instruments

(Deleted portions)

Reflection of light, spherical mirrors,(recapitulation) mirror formula , Scattering of light – blue colour of sky and reddish appearance of the sun at sunrise and sunset. resolving power of microscope and astronomical telescope, polarisation, plane polarised light, Brewster’s law, uses of plane polarised light and Polaroids.

Chapter-11 Dual Nature of radiation and matter

Davisson-Germer experiment

Chapter 13 Nuclei

(Deleted portions)

Radioactivity, alpha, beta and gamma particles/rays and their properties; radioactive decay law, half life and mean life binding energy per nucleon and its variation with mass number

Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits

Zener diode and their characteristics, Zener diode as a voltage regulator.

Practicals:

No investigatory project and Activity to be demonstrated

8 experiments ( clubbed based on skills ) in place of 12

Get more information and updates from CBSE

Get your doubts in Physics answered online at AskPhysics

Also read CBSE Physics 2020-21 Syllabus

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