Important topics of physics class 12 for board exam pls koi bta do ?

Question

Answer

Whole current electricity and potentiometer to pkka HR sal 1 question fix h
transformer
mcg
Huygens theory
de broglie wave equation
radioactivity
distance of closest approach and impact parameter and wavelength vala formula jisme Rydberg constt h
diodes and transistor

Answer

1)Ray optics 6 derivtns;
mirror formula,reflection through spherical mirror,lens maker's formula,magnificatn of telescope,microscope,angle of prism.
2)EMI;
self inductance,mutual inductance,transformer.
3)Current Electricity;
potentiometer,moving coil of a galvanometer
4)transistor
meter bridge
5)Electrostatics;
Mainly focus on guass law based derivation ...Its conform,granty.... qtn of 5marks !! Pakka.
6)Matter & magntsm;
ampere circutal law,Biot savart law.
7)AC generator
cyclotron
These are the most probable derivations in 12th phy..But remember in board direct qtns r not asked abt to derive ,they twist it like anythng & confuse us but don't worry U CAN ROCK PHY if u learned by understanding !!

Answer

Important Topics of Physics Class 12 for Board Exams

Physics is a fascinating subject that deals with the study of matter, energy, and their interactions. Class 12 Physics covers a wide range of topics that are important for board exams. Here are some of the key topics you should focus on:

1. Electric Charges and Fields:
- Coulomb's law and its applications
- Electric field and its representation
- Gauss's law and its applications
- Electric potential and potential difference
- Capacitance and capacitance of a parallel plate capacitor

2. Electrostatic Potential and Capacitance:
- Electric potential energy and potential difference
- Equipotential surfaces and their properties
- Capacitors and its types
- Capacitance and factors affecting it
- Energy stored in a capacitor

3. Current Electricity:
- Ohm's law and its limitations
- Electrical resistance, resistivity, and conductance
- Series and parallel combinations of resistors
- Kirchhoff's laws and their applications
- Potentiometer and its uses

4. Magnetic Effects of Current and Magnetism:
- Magnetic field and its properties
- Biot-Savart law and Ampere's law
- Magnetic force on a moving charge and current-carrying conductor
- Magnetic field due to a straight wire, circular loop, and solenoid
- Earth's magnetism and magnetic materials

5. Electromagnetic Induction and Alternating Current:
- Faraday's law of electromagnetic induction
- Lenz's law and its applications
- Self-induction and mutual induction
- AC generator and transformer
- LC oscillations and resonance

6. Electromagnetic Waves:
- Electromagnetic spectrum and its properties
- Production and detection of electromagnetic waves
- Reflection, refraction, and total internal reflection of electromagnetic waves
- Applications of electromagnetic waves in communication

7. Optics:
- Ray optics and wave optics
- Reflection and refraction of light
- Lens formula and lens maker's formula
- Dispersion of light and prisms
- Optical instruments and their uses

8. Dual Nature of Radiation and Matter:
- Photoelectric effect and its experimental study
- Einstein's photoelectric equation and its applications
- Wave-particle duality and de Broglie wavelength
- Davisson-Germer experiment

9. Atoms and Nuclei:
- Atomic models and their limitations
- Bohr's model of the hydrogen atom
- Radioactivity and its types
- Nuclear reactions and their applications
- Mass-energy equivalence and nuclear energy

10. Electronic Devices:
- Semiconductors and their properties
- PN junction and diodes
- Transistors and its types
- Logic gates and their truth tables
- Digital communication and modulation techniques

It is important to thoroughly understand the concepts and derivations, and practice solving numerical problems related to these topics. Make sure to refer to your textbooks, class notes, and solve sample papers to improve your understanding and performance in the board exams. Good luck!

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