12th Physics (CBSE) 2021 UPDATED

This course helps students to understand and correlate the concepts of Class 12th to target CBSE school exams and other entrance exams. Here in this course we cover all units and chapters from subject Physics. It’s a perfect syllabus for school exam and competitive exams. This course has been done using NCERT and other preferred reference books, so this is the perfect study material. This course is available in English Language. Also student will get free eBooks, and Doubt clearing services from our top faculties. Our team of top most faculties are selected with good teaching skill, highly qualified and experienced faculty. Most of our faculty are IITians, NITians and Doctors having decade of experience. They are all expert in their subject and committed to the success of our students. We ensure to provide best results out of all level of students.

Description

  • 1. 720p HD Video Lectures designed by top faculties
  • 2. Theory & Problem Solving Lectures of full syllabus
  • 3. Cover all updated syllabus
  • 4. Chapter-wise PDF e-Books
  • 5. Online Test of important questions
  • 6. Doubt Clearing
  • 7. 24X7 Online Streaming Course
  • 8. Access anytime, anywhere using any device

What you'll learn

Unit–I Electrostatics

Chapter–1: Electric Charges and Fields

Electric Charges; Conservation of charge, Coulomb's law-force between two-point charges,  forces  between  multiple  charges;  superposition  principle  and  continuous charge distribution. Electric  field,  electric  field  due to  a point  charge, electric  field  lines,  electric  dipole, electric field due to a dipole, torque on a dipole in uniform electric field.

Electric flux, statement of Gauss's  theorem and its applications to  find field due to infinitely long straight wire, uniformly charged infinite plane sheet

 

Chapter–2: Electrostatic Potential and Capacitance

Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field.

Conductors and  insulators,  free  charges  and  bound   charges  inside  a conductor. Dielectrics and electric polarisation, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor.

 

Unit II: Current Electricity

 

Chapter–3: Current Electricity

Electric  current, flow of electric charges in  a metallic conductor, drift velocity,  mobility and   their   relation   with   electric   current;   Ohm's   law,   electrical   resistance,   V-I characteristics (linear and nonlinear), electrical energy and power, electrical resistivity and conductivity; temperature dependence of resistance.

Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff's laws and simple applications, Wheatstone bridge, metre bridge(qualitative ideas only)

Potentiometer  - principle  and its  applications  to measure potential  difference  and for comparing EMF of two cells; measurement of internal resistance of a cell(qualitative ideas only)

 

Unit III: Magnetic Effects of Current and Magnetism

 

Chapter–4: Moving Charges and Magnetism

Concept of magnetic field, Oersted's experiment.

Biot - Savart law and its application to current carrying circular loop.

Ampere's law and its applications to infinitely long straight wire. Straight and toroidal solenoids (only qualitative treatment), force on a moving charge in uniform magnetic and electric fields

Force on a current-carrying conductor in a uniform magnetic field, force between two parallel  current-carrying  conductors-definition  of  ampere,  torque experienced  by  a current loop  in uniform  magnetic field;  moving  coil galvanometer-its  current sensitivity and conversion to ammeter and voltmeter.

 

Chapter–5: Magnetism and Matter

Current loop as a magnetic dipole and its magnetic dipole moment, magnetic dipole moment of a revolving electron, bar magnet as an equivalent solenoid, magnetic field lines; earth's magnetic field and magnetic elements.

 

Unit IV: Electromagnetic Induction and Alternating Currents

 

Chapter–6: Electromagnetic Induction

Electromagnetic induction; Faraday's laws, induced EMF and current; Lenz's Law, Eddy currents. Self and mutual induction.

 

Chapter–7: Alternating Current

Alternating currents, peak and RMS value of alternating current/voltage; reactance and impedance; LC oscillations (qualitative treatment only), LCR series circuit, resonance; power in AC circuits

AC generator and transformer.

 

Unit V: Electromagnetic waves

 

Chapter–8: Electromagnetic Waves

Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only).

Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.

 

Unit VI: Optics

 

Chapter–9: Ray Optics and Optical Instruments

Ray Optics: Refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lensmaker's formula, magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism.

Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

 

Chapter–10: Wave Optics

Wave optics: Wavefront and Huygens principle, reflection and refraction of plane waves at a plane surface using wave fronts. Proof  of laws of reflection and refraction using Huygens principle. Interference, Young's double  slit  experiment  and expression for fringe width, coherent sources and sustained interference of light, diffraction due to a single slit, width of central maximum

 

Unit VII: Dual Nature of Radiation and Matter

 

Chapter–11: Dual Nature of Radiation and Matter

Dual nature of radiation, Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation-particle nature of light.

Experimental study of photoelectric effect

Matter waves-wave nature of particles, de-Broglie relation

 

Unit VIII:  Atoms and Nuclei

 

Chapter–12: Atoms

Alpha-particle  scattering  experiment;  Rutherford's  model  of atom; Bohr  model,  energy levels, hydrogen spectrum.

 

Chapter–13: Nuclei Composition and size of nucleus Nuclear force

Mass-energy relation, mass defect, nuclear fission, nuclear fusion.

 

Unit IX: Electronic Devices

 

Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits 

 

Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Semiconductor diode - I-V characteristics in forward and reverse bias, diode as a rectifier; Special purpose p-n junction diodes: LED, photodiode, solar cell.

Requirements

   Internet laptop/Desktop or mobile