KCET PHYSICS CHAPTERWISE
WEIGHTAGE
Chapter
Names
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2014
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2015
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2016
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2017
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2018
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Physical World
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Units and Measurements
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1
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1
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1
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2
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Motion in a straight line
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2
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1
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1
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1
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1
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Motion in a Plane
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2
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1
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2
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2
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Laws of Motion
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2
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1
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1
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1
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2
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Work , Energy and Power
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1
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1
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1
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1
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System
of Particles & Rotational Motion
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3
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2
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2
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1
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1
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Gravitation
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2
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1
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1
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1
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2
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Mechanical Properties of Solids
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1
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1
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1
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1
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Mechanical Properties of Fluids
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1
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1
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1
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1
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Thermal Properties of Matter
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1
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2
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2
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1
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1
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Thermodynamics
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2
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1
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1
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1
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1
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Kinetic Theory of Gasses
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1
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1
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Oscillations
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1
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1
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1
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1
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Waves
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3
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2
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1
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1
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1
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Electric Charges and Fields
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4
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4
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3
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3
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1
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Electrostatic
Potentials and Capacitance
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3
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2
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4
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3
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5
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Current Electricity
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4
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6
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7
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7
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6
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Moving Charges and Magnetism
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5
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4
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3
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3
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4
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Magnetism and Matter
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2
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3
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2
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4
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2
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Electromagnetic Induction
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1
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3
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2
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3
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2
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Alternating Current
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4
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3
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4
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2
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5
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Electromagnetic Waves
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1
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1
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1
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1
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Ray optics and Optical instruments
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3
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2
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4
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2
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3
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Wave optics
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3
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3
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3
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4
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4
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Dual nature of matter and radiation
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2
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2
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2
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2
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3
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Atoms
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2
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3
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2
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2
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2
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Nuclei
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2
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3
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3
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3
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2
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Semiconductor electronics
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3
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5
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3
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5
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4
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Communication Systems
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1
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1
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1
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1
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2
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Units
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Topics
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Unit-I Chapter 1: Electric Charges And Fields
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Electric charges and their properties
Superposition principle
Continuous charge distribution
Electric dipole
Electric field lines
Electric flux
Gauss’s Law
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Unit-II Chapter 2: Electrostatic Potential And Capacitance
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Electric potential
Equipotential surfaces
Electric potential energy
Dielectrics and electric polarization
Capacitors and capacitance
Combination of capacitors
Van de Graff generator
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Unit-III Chapter 3: Current Electricity
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Definition of electric current
Ohm’s law
Drift of electrons and origin of resistivity
Electrical energy and power
Combination of resistors
Cells
Combination of cells
Kirchhoff’s rules
Wheatstone bridge
Potentiometer
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Unit-IV Chapter 4: Moving Charges And Magnetism
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Concept of magnetic field
Motion of a charge in a uniform magnetic
field
Velocity selector
Cyclotron
Biot–Savart law
Ampere’s circuital law
Moving coil galvanometer
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Unit-V
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Chapter 5: Magnetism And Matter
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Bar magnet
Earth’s magnetic field and its elements
Magnetic properties of materials
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Chapter 6: Electromagnetic Induction
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Faraday’s law of
electromagnetic induction
Inductance – Mutual inductance
Self-inductance
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Unit-Vi
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Chapter 7: Alternating Current
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AC voltage applied to a resistor
AC voltage applied to an inductor
AC voltage applied to a capacitor
AC voltage applied to series LCR circuit
LC oscillations
Transformer
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Chapter 8: Electromagnetic Waves
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Displacement current
Electromagnetic waves
Electromagnetic spectrum
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Unit-ViiChapter 9: Ray Optics And Optical Instruments
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Reflection of light by spherical mirrors
length of spherical mirrors
Mirror equation
Refraction of light
Total internal reflection
Refraction by a Lens
Refraction of light through a prism
Scattering of light
Optical instruments
Simple microscope, Telescope
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Unit-VIII Chapter 10: Wave Optics
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Wave front
Young’s experiment
Polarisation
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Unit-Ix
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Chapter 11: Dual Nature Of Radiation And Matter
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Electron emission
Photoelectric effect
Experimental setup to study Photoelectric effect
Einstein’s photoelectric equation
Particle nature of light
Wave nature of matter
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Chapter 12: Atoms
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Alpha particle scattering
Atomic spectra
Bohr model of hydrogen atom
hydrogen atom
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Unit-X
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Chapter 13: Nuclei
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Nuclear binding
Energy
Radioactivity
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Chapter 14: Semiconductor Electronics
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Energy bands in solids
Semiconductors
Junction transistor
Logic gates
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Chapter 15: Communication Systems
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Basic terminology used in
electronic communication systems
Propagation of electromagnetic waves
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UNIT-I
Chapter 1: ELECTRIC CHARGES AND FIELDS (9 hours)
Electric charges and their properties: Additivity of charges, quantisation of charges
and conservation of charges - Coulomb’s law: Statement, explanation (only in free
space) and expression in vector form - Definition of SI unit of charge - Superposition
principle: Statement, application to find the force between multiple charges.
Electric field: Definition of electric field - Mention of expression for electric field due
to a point charge -Application of superposition principle to find electric field for a
system of charges.
Continuous charge distribution: Definitions of surface, linear and volume charge
densities - Mention of expression for electric field due to a continuous charge
distribution.
Electric dipole: Definition of electric dipole and dipole moment - Derivation of
electric field due to a dipole (a) at any point on its axis (b) at any point on its
equatorial plane -Derivation of the torque on an electric dipole in an uniform electric
field and expression in vector form.
Electric field lines: Properties and representation - Electric flux: Concept of electric
flux - Area element vector, electric flux through an area element - Gauss’s Law:
Statement and its applications to find electric field due to (a) infinitely long straight
charged wire, (b) uniformly charged infinite plane sheet and (c) uniformly charged
thin spherical shell (field inside and outside), Numerical Problems.
UNIT-II
Chapter 2: ELECTROSTATIC POTENTIAL AND CAPACITANCE (9 hours)
Electric potential: Definition of electric potential at a point - Definition of potential
difference - Derivation of electric potential due to a point charge - Mention of
expression for electric potential due a short electric dipole at any point - Comparison
of the variation of electric potential with distance between a point charge and an
electric dipole - Application of superposition principle to find electric potential due to
a system of charges.
Equipotential surfaces: Properties - Derivation of the relation between electric field
and potential,
Electric potential energy: Definition of electric potential energy of a system of
charges - Derivation of electric potential energy of a system of two point charges in
the absence of external electric field - Mention of expression for electric potential
energy of a system of two point charges in presence of external electric field. Mention
of the expression for the electric potential energy of an electric dipole placed in a
uniform electric field.
Electrostatics of conductors - Dielectrics and electric polarisation: Polar and nonpolar dielectrics and their behavior in the absence and presence of an external electric
field.
Capacitors and capacitance - Parallel plate capacitor - Derivation of the capacitance of
a capacitor without dielectric medium - Mention of expression for capacitance of a
capacitor with dielectric medium - Definition of dielectric constant.
Combination of capacitors: Derivation of effective capacitance of two capacitors (a)
in series combination and (b) in parallel combination,
Derivation of energy stored in a capacitor.
Van de Graaff generator: Principle, labeled diagram and use, Numerical Problems.
UNIT-III
Chapter 3: CURRENT ELECTRICITY (15 hours)
Definition of electric current - Electric currents in a conductor - Definition of current
density - Ohm’s law: Statement and explanation - Dependence of electrical resistance
on the dimensions of conductor and mention of R= ρl/A - Electrical resistivity and
conductivity - Derivation of the relation ȷ = σE (equivalent form of Ohm’s law) -
Limitations of Ohm’s law.
Drift of electrons and origin of resistivity: Definitions of drift velocity, relaxation time
and mobility - Derivation of expression for conductivity of a material (σ = ne
2
τ/m).
Color code of carbon resistors; Temperature dependence of resistivity of metals and
semiconductors.
Electrical energy and power: Mention of expression for power loss.
Combination of resistors: Derivation of effective resistance of two resistors (a) in
series combination and (b) in parallel combination.
Cells: Definitions of internal resistance of a cell, terminal potential difference and emf
of a cell -Derivation of current drawn by external resistance.
Combination of cells: Derivation of expressions for equivalent emf and equivalent
internal resistance (a) in series and (b) in parallel combination.
Kirchhoff’s rules: Statements and explanation.
Wheatstone bridge: Derivation of balancing condition – Metre Bridge.
Potentiometer: Principle - Mention of applications (a) to compare emf of two cells
and (b) to measure internal resistance of a cell, Numerical Problems.
UNIT-IV
Chapter 4: MOVING CHARGES AND MAGNETISM (10 hours)
Concept of magnetic field - Oersted’s experiment – Force on a moving charge in
uniform magnetic and electric fields: Lorentz force - Derivation of magnetic force on
a current carrying conductor = (
× ).
Motion of a charge in a uniform magnetic field: Nature of trajectories - Derivation of
radius and angular frequency of circular motion of a charge in uniform magnetic field.
Page 3 of 35
Velocity selector: Crossed electric and magnetic fields serve as velocity
Velocity selector: Crossed electric and magnetic fields serve as velocity selector.
Cyclotron: Principle, construction, working and uses.
Biot–Savart law: Statement, explanation and expression in vector form - Derivation
of magnetic field on the axis of a circular current loop - Right hand thumb rule to find
direction.
Ampere’s circuital law: Statement and explanation - Application of Ampere’s circuital
law to derive the magnetic field due to an infinitely long straight current carrying wire:
Solenoid and toroid - Mention of expressions for the magnetic field at a point inside a
solenoid and a toroid.
Derivation of the force between two parallel current carrying conductors - Definition
of ampere.
Current loop as a magnetic dipole - Qualitative explanation and definition of magnetic
dipole moment -Mention of expression for torque experienced by a current loop in a
magnetic field - Derivation of magnetic dipole moment of a revolving electron in a
hydrogen atom and to obtain the value of Bohr magneton.
Moving coil galvanometer: Mention of expression for angular deflection - Definitions
of current sensitivity and voltage sensitivity - Conversion of galvanometer to ammeter
and voltmeter, Numerical Problems.
UNIT-V
Chapter 5: MAGNETISM AND MATTER (8 hours)
Bar magnet: Properties of magnetic field lines - Bar magnet as an equivalent solenoid
with derivation - Dipole in a uniform magnetic field: Mention of expression for time
period of oscillation of small compass needle in a uniform magnetic field -Gauss law
in magnetism: Statement and explanation.
Earth’s magnetic field and its elements: Declination, Dip and Earth’s horizontal
component BH and their variation - Definitions of magnetisation (M), magnetic
intensity (H), magnetic susceptibility (χ) and permeability (µ, µo and µr).
Magnetic properties of materials: Paramagnetic, diamagnetic and ferromagnetic
substances, examples and properties - Curie’s law and Curie temperature - Hysteresis,
Hysteresis loop, definitions of retentivity and coercivity - Permanent magnets and
electromagnets.
Chapter 6: ELECTROMAGNETIC INDUCTION (7 hours)
Experiments of Faraday and Henry - Magnetic flux
= ⋅ Faraday’s law of
electromagnetic induction: Statement and explanation - Lenz’s law: Statement,
explanation and its significance as conservation of energy.
Motional emf - Derivation of motional emf - Eddy currents -Advantages of eddy
currents with common practical applications.
Inductance - Mutual inductance: Mention of expression for mutual inductance of two
coaxial solenoids – Mention of expression for induced emf .
Self-inductance: Mention of expression for self-inductance of solenoid - Mention of
expression for induced emf Derivation of energy stored in the coil.
AC generator: Labeled diagram - Derivation of instantaneous emf in an ac generator,
Numerical Problems.
UNIT-VI
Chapter 7: ALTERNATING CURRENT (8 hours)
Mention of expression for instantaneous, peak and rms values of alternating current
and voltage.
AC voltage applied to a resistor: Derivation of expression for current, mention of
phase relation between voltage and current, phasor representation.
AC voltage applied to an inductor: Derivation of expression for current, mention of
phase relation between voltage and current, phasor representation and mention of
expression for inductive reactance.
AC voltage applied to a capacitor: Derivation of expression for current, mention of
phase relation between voltage and current, phasor representation and mention of
expression for capacitive reactance.
AC voltage applied to series LCR circuit: Derivation of expression for impedance,
current and phase angle using phasor diagram - Electrical resonance - Derivation of
expression for resonant frequency - Mention of expressions for bandwidth and
sharpness (quality factor).
Mention of expression for power in ac circuit - Power factor and qualitative discussion
in the case of resistive, inductive and capacitive circuit-Meaning of wattless current.
LC oscillations: Qualitative explanation - Mention of expressions for frequency of LC
oscillations and total energy of LC circuit.
Transformer: Principle, construction and working - Mention of expression for turns
ratio - Sources of energy losses, Numerical Problems.
Chapter 8: ELECTROMAGNETIC WAVES (2 hours)
Displacement current - Mention the need for displacement current (inconsistency of
Ampere’s circuital law) -Mention of expression for displacement current - Mention of
expression for Ampere-Maxwell law.
Electromagnetic waves: Sources and nature of electromagnetic waves –
Characteristics - Mention of expression of speed of light.
Electromagnetic spectrum: Wavelength range and their uses.
UNIT-VII
Chapter 9: RAY OPTICS AND OPTICAL INSTRUMENTS (9 hours)
Reflection of light by spherical mirrors: Sign convention (Cartesian rule) - Focal
length of spherical mirrors: Derivation of the relation f = R/2 in the case of a concave
mirror -Mirror equation: Derivation of mirror equation in the case of concave mirror
producing a real image - Definition and expression for linear magnification.
Refraction of light: Explanation of phenomenon - Laws of refraction - Consequences.
Total internal reflection: Explanation of phenomenon - Mention of conditions -
Definition of critical angle - Mention the relation between n and ic - Mention of its
applications (mirage, total reflecting prisms and optical fibers).
Refraction at spherical surfaces: Derivation of the relation between u, v, n and R.
Refraction by a Lens: Derivation of lens-maker’s formula - Mention of thin lens
formula - Definition and expression for linear magnification.
Power of a lens and mention of expression for it.
Combination of thin lenses in contact – Derivation of equivalent focal length of two
thin lenses in contact.
Refraction of light through a prism: Derivation of refractive index of the material of
the prism - Dispersion by prism.
Scattering of light: Rayleigh’s scattering law - Blue colour of the sky and reddish
appearance of the sun at sunrise and sunset.
Optical instruments: Eye: Accommodation and least distance of distinct vision -
Correction of eye defects (myopia and hypermetropia) using lenses.
Simple microscope: Ray diagram for image formation - Mention of expression for the
magnifying power - Compound microscope: Ray diagram for image formation -
Mention of expressions for the magnifying power when the final image is at (a) least
distance of distinct vision and (b) infinity.
Telescope: Ray diagram for image formation - Mention of expression for the
magnifying power and length of the telescope (L = fo + fe) - Schematic ray diagram of
reflecting telescope, Numerical Problems.
UNIT-VIII
Chapter 10: WAVE OPTICS (9 hours)
Wave front: plane, spherical and cylindrical – Huygens principle - Refraction of plane
wave (rarer to denser), derivation of Snell’s law - Reflection of a plane wave by a
plane surface, derivation of the law of reflection.
Explanation of refraction of a plane wave by (a) a thin prism, (b) by a convex lens and
(c) by a concave mirror, using diagrams.
Coherent sources - Theory of interference, (with equal amplitude) arriving at the
conditions for constructive and destructive interference.
Young’s experiment: Brief description - Derivation of fringe width.
Diffraction: Explanation of the phenomenon - Diffraction due to a single slit -Mention
of the conditions for diffraction minima and maxima - Intensity distribution curve.
Resolving power of optical instruments: Mention of expressions for limit of resolution
of (a) microscope and (b) telescope - Methods of increasing resolving power of
microscope and telescope.
Polarisation: Explanation of the phenomenon - Plane polarised light - Polaroid and its
uses - Pass axis – Malus’ law - Polarisation by reflection: Brewster’s angle - Arriving
at Brewster’s law - Statement of Brewster’s law, Numerical Problems.
UNIT-IX
Chapter 11: DUAL NATURE OF RADIATION AND MATTER (6 hours)
Electron emission: Definition of electron volt (eV) - Types of electron emission.
Photoelectric effect: Mention of Hertz’s observations - Mention of Hallwachs’ and
Lenard’s observations - Explanation of the phenomenon of Photoelectric effect –
Definition of work function, threshold frequency and stopping potential -
Experimental setup to study Photoelectric effect: Observations - Mention of effect of
(a)intensity of light on photocurrent, (b) potential on photocurrent and (c) frequency of
incident radiation on stopping potential.
Einstein’s photoelectric equation: Explanation of experimental results.
Particle nature of light: Characteristics of photon.
Wave nature of matter: de-Broglie hypothesis - Mention of de-Broglie relationMention of expression for de-Broglie wavelength in terms of kinetic energy and
acceleration potential - Davisson and Germer experiment: (No experimental details)
Brief explanation of conclusion - wave nature of electrons on the basis of electron
diffraction, Numerical Problems.
Chapter 12: Atoms (5 hours)
Alpha particle scattering: Schematic diagram of Geiger-Marsden experiment,
observations and conclusion - Rutherford’s model of an atom - Derivation of total
energy of electron in hydrogen atom in terms of orbit radius.
Atomic spectra: Spectral series of hydrogen - Mention of empirical formulae for
1/ (wave number) of different series.
Bohr model of hydrogen atom: Bohr’s postulates - Derivation of Bohr radius -
Derivation of energy of electron in stationary states of hydrogen atom - Line spectra of
hydrogen atom: Derivation of frequency of emitted radiation - Mention of expression
for Rydberg constant - Energy level diagram - de-Broglie’s explanation of Bohr’s
second postulate - Limitations of Bohr model, Numerical Problems.
UNIT-X
Chapter 13: NUCLEI (7 hours)
Definition of atomic mass unit (u) - Isotopes, isobars and isotones - Composition, size,
mass and density of the nucleus - Einstein’s mass energy relation - Nuclear binding
energy: Brief explanation of mass defect and binding energy - Binding energy per
nucleon -Binding energy curve - Nuclear force and its characteristics.
Nuclear fission and nuclear fusion with examples.
Radioactivity: Law of radioactive decay - Derivation of N=
- Activity (decay
rate) and its units - becquerel and curie - Definition and derivation of half-life of
radioactive element - Definition of mean life and mention its expression.
Alpha decay, beta decay (negative and positive) and gamma decay with examples -
Q value of nuclear reaction, Numerical Problems.
Chapter 14: SEMICONDUCTOR ELECTRONICS (12 hours)
Energy bands in solids: Valance band, conduction band and energy gap -
Classification of solids on the basis of energy bands.
Semiconductors: Intrinsic semiconductors - Extrinsic semiconductors (p-type and
n-type); p-n junction: p-n junction formation.
Semiconductor diode: Forward and reverse bias - I-V characteristics - Definitions of
cut-in-voltage, breakdown voltage and reverse saturation current.
Diode as a rectifier: Circuit diagram, working, input and output waveforms of
a) half-wave rectifier and (b) full-wave rectifier.
Zener diode: I-V characteristics - Zener diode as a voltage regulator.
Optoelectronic junction devices: Working principles and mention of applications of
photodiode, LED and solar cell.
Junction transistor: Types of transistor - Transistor action - Common emitter
characteristics of a transistor: Drawing of input and output characteristics - Definitions
of input resistance, output resistance and current amplification factor.
Transistor as a switch: Circuit diagram and working.
Transistor as an amplifier (CE - configuration): Circuit diagram and working -
Derivation of current gain and voltage gain.
Transistor as an oscillator: principle and block diagram.
Logic gates: Logic symbol and truth table of NOT, OR, AND, NAND and NOR gates.
Chapter 15: COMMUNICATION SYSTEMS (4 hours)
Block diagram of generalized communication system - Basic terminology used in
electronic communication systems : Transducer, Signal, Noise, Transmitter, Receiver,
Attenuation, Amplification, Range, Bandwidth, Modulation, Demodulation, Repeater -
Mention of bandwidth of signals for speech, TV and digital data - Mention of
bandwidth of transmission medium for coaxial cable, free space and optical fibers -
Propagation of electromagnetic waves: Brief explanation of ground wave, sky wave
and space wave - Need for modulation - Amplitude modulation: Meaning - Block
diagram of AM transmitter and AM receiver.
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