IMPORTANT TOPICS FOR CLASS 12th BOARD EXAMS 2020 : TOPICS WISE

IMPORTANT TOPICS FOR BOARD EXAMS 2020

CLASS  - 12TH ( CBSE & RBSE )

PHYSICS - I 

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CHAPTER:- 1 

ELECTRIC CHARGES AND FIELD

○ Important TOPICS 

1. Coulomb’s Law 

2.Forces between multiple charges electric field due to system of charges.

3. Electric field lines and its properties.

4. Electric dipole’s electric field on axial and equatorial point

5. Electric dipole in external electric field

6. Gauss’s law and its applications

CHAPTER:-- 2 

ELECTRIC POTENTIAL AND CAPACITANCE 

○ Important TOPICS 

1. Potential due to electric dipole and system of charges 

2. Electric potential energy due to electric dipole and system of charges

3. Equipotential surfaces

4. Effect of dielectric on capacitors

5. Combinations of capacitors

6. Energy stored in capacitors

CHAPTER:-- 3 

CURRENT ELECTRICITY 

○ Important TOPICS 
1. Ohm’s Law
2. Limitations of ohm’s law
3. Resistivity of different materials
4. Combination of resistors
5. Combination of cells
6. Kirchhoff’s law
7. Meter bridge
8. Potentiometer

CHAPTER:-- 4

MAGNETIC EFFECT OF CURRENT 

○ Important TOPICS 
1. Magnetic force on current carrying wire

2. Motion in a magnetic field

3. Velocity selector

4. Cyclotron

5. Magnetic field on axis of circular current carrying loop 

6. Ampere’s circuital law

7. Force between two parallel current carrying wires

8. Torque on current carrying loop in magnetic field

9. Moving coil galvanometer

CHAPTER:-- 5

MAGNETISM AND MATTER 

○ Important TOPICS 
1. Axial magnetic field of bar magnet as solenoid

2. Electric dipole in uniform magnetic field

3.Diamagnetic,Paramagnetic,Ferromagnetic Substances

4. Hysteresis Loop

CHAPTER:-- 6

ELECTROMAGNETIC  INDUCTION 

○ Important TOPICS 
1. Magnetic flux
2. Faraday’s law of induction
3. Lens law
4. Motional EMF
5. Self inductance and mutual inductance

CHAPTER:-- 7

ALTERNATING CURRENT 

○ Important TOPICS 
1. RC, LC, LR and LCR Circuits

2. LC oscillations

3. Power factor

4. Resonance and Sharpness

5. Transformers

CHAPTER:-- 8

ELECTROMAGNETIC WAVES

○ Important TOPICS 
1. Displacement Current
2. EM waves
3. Nature of EM waves

PHYSICS - II 

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CHAPTER:-- 9

RAY OPTICS AND OPTICAL INSTRUMENTS 

○ Important TOPICS 
1. Image formation by spherical mirrors
2. Image formation by spherical lenses

3. Total internal reflection

4. Power and combination of lenses

5. Refraction through a Prism

6. Natural phenomenons due to light

7. Eye

8. Telescope

9. Microscope

CHAPTER:-- 10

WAVE OPTICS

○ Important TOPICS 
1. Reflection and refraction of plane waves using Huygen principle
2. Incoherent and coherent waves addition
3. Interference and Young’s double slit experiment
4. Diffraction of light
5. Resolving power of optical Instruments
6. Polarisation by scattering

CHAPTER:-- 11

DUAL NATURE OF RADIATION AND MATTER WAVES 

○ Important TOPICS 
1. Photoelectric effect

2. Einstein photoelectric equation

3. de Broglie hypothesis

4. Davisson and Germer experiment

CHAPTER:-- 12

ATOMS

○ Important TOPICS 
1. Electron Orbits
2. Atomic spectra

3. Bohr Model of Hydrogen atom

4. Line spectra of Hydrogen atom

5. de-Broglie explanation of Bohr’s postulate

CHAPTER:-- 13

NUCLEI 

○ Important TOPICS 
1. Nuclear binding energy
2. Radioactivity

3. Radioactive decays

CHAPTER:-- 14

SEMICONDUCTOR ELECTRONICS 

○ Important TOPICS 
1. Intrinsic semiconductors
2. Extrinsic semiconductors

3. p-n Junction diode

4. p-n Junction in forward bias and reverse bias

5. Junction diode as rectifier

6. Zener diode as voltage regulator

7. n-p-n and p-n-p transistor

8. Transistor as an amplifier

9. Logic gates

CHAPTER:-- 15

COMMUNICATION SYSTEM

○ Important TOPICS 
1. Elements of communication system
2. Basic terminologies of electronic communication system

3. Propagation of em waves

4. Amplitude modulation

All the best all students for you exam..
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