# CBSE Syllabus 2020-21: Check Deleted Topics From 12th Physics Syllabus 2020-21

#### BySchool Connect Online

Jul 21, 2020

CBSE has rationalized the syllabus with the help of suggestions from NCERT and the same has been notified by a new CBSE notification as well.

CBSE stated in its notification that though 30% of the syllabus has been cut from the new academic year, teachers should ensure that students understand these topics so they can use the information in connection with other topics.

It further stated that the deleted portions of the CBSE syllabus will not be included in the internal assessments or the year-end board exams.

CBSE Physics Class 12 Syllabus 2020-21, Chapter, Topics has been revealed. Class 12 students of 2020-21, who are looking for the Information of CBSE Physics Class 12 Syllabus 2020 may not have to worry about it. As we have provided the Information for Physics Syllabus of Central Board of Secondary Education (CBSE) for Class 12 of 2020-21 in this article.

### Chapter-1 Electric charges and fields

Deleted Topic – uniformly charged thin spherical shell (field inside and outside).

### Chapter-3 Current Electricity

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

### Chapter-4 Moving Charges and Magnetism

Deleted Topic – Cyclotron

### Chapter-5 Magnetism and Matter

Deleted Topic – 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;

Deleted Topic – Para-, dia- and ferro – magnetic substances, with examples. Electromagnets and factors affecting their strengths, permanent magnets.

### Chapter-7 Alternating Current

Deleted Topic – power factor, wattless current.

### Chapter 8 Electromagnetic Waves

Deleted Topic – Basic idea of displacement current,

### Chapter 9 Ray Optics and Optical Instruments

Deleted Topic – 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

Deleted Topic – Davisson-Germer experiment

### Chapter 13 Nuclei

Deleted Topic – 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

Deleted Topic –  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

### Related Links – Complete CBSE class 11 syllabus 2020-21

#### By School Connect Online

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