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Have Doubts Regarding This Product ? Ask Your Question

  • Q1
    What major topics are covered in "Modern Physics"?
    A1

    The book includes essential topics such as quantum mechanics, the Schrödinger equation, atomic theory, wave-particle duality, X-rays, and molecular structures.

  • Q2
    How does the book introduce the concept of quantum mechanics?
    A2

    It explores the origin of quantum mechanics and discusses pivotal theories that revolutionized our understanding of atomic and subatomic processes.

  • Q3
    What is the significance of the Schrödinger equation in the book?
    A3

    The book offers in-depth explanations of the Schrödinger equation, its solutions, and their critical role in quantum mechanics for analyzing physical systems.

  • Q4
    Are practical applications of modern physics concepts addressed in the book?
    A4

    Yes, the book emphasizes the application of modern physics theories through examples, showing their relevance in real-world scenarios.

  • Q5
    Does the book include diagrams and illustrations to enhance understanding?
    A5

    Yes, the book features diagrams and illustrative examples to clarify complex concepts, making them more accessible to students.

  • Q6
    What foundational knowledge is necessary to understand the material in "Modern Physics"?
    A6

    A basic understanding of classical physics, mathematics, and introductory quantum mechanics will help students grasp the more advanced topics presented.

  • Q7
    How does Dr. A.K. Sikri make difficult concepts more engaging for students?
    A7

    The author employs clear explanations, a structured approach, and relatable contexts to engage students, making complex theories easier to understand.

  • Q8
    What practical experiments are mentioned in the book?
    A8

    Important experiments such as the Davisson-Germer experiment, Compton effect, and various applications of the Schrödinger equation are discussed in detail.

  • Q9
    How does the book approach the wave function and its implications?
    A9

    The book discusses the wave function's role in quantum mechanics, including its probabilistic interpretation and the significance of boundary conditions.

  • Q10
    Is there a focus on any historical developments in physics within the book?
    A10

    Yes, the book examines the historical context behind key developments in quantum mechanics, connecting students to the evolution of physical theories.

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1.Origin of quantum mechanics 

2.The wave function and the schrodinger equation

3.Operators,Eigenvalues and eigenfunctions 

4.Solution of time-independent schrodinger equation

5.Quantum theory of hydrogen atom 

6.Atoms with one valence electron 

7.Atoms with many electrons 

8.X-rays 

9.Molecules 

10.Differential equations 

SEMESTER - 3

QUANTUM PHYSICS-I

UNIT-I
Formalism of Wave Mechanics:
(i) Planck’s formula of black body radiation and energy quantization,
Wave-particle duality—photoelectric effect, X-ray diffraction, Compton effect, pair production,
Photon and gravity.De Broglie waves, wave packets, phase velocity and group velocity, and electron microscopes
Particle in a box, particle diffraction, Davisson-Germer experiment, interferometry with
particles. Uncertainty principle with illustrations, Principle of complementarity.
(ii) Quantum mechanics, wave equation, plausible arguments leading to time-dependent Schrödinger
equations, Born’s interpretation of wave function, complex character, continuity, and boundary
conditions, probability interpretation, normalization, probability current, probability conservation
equation, Principle of superposition.
(iii) Fundamental postulates of quantum mechanics. Eigenvalues and eigenfunctions. Operator
formalism, position, momentum, and energy operators; expectation values; the Ehrenfest theorem;
Hermitian operators.

UNIT II
Problems in One and Three Dimensions:
(a) Steady-state Schrodinger equation, application to stationary states for one dimension, potential step.
potential barrier, tunnel effect examples, scanning tunneling microscope, rectangular potential
well, linear harmonic oscillator.
(ii) Schrödinger equation for spherically symmetric potential, spherical harmonics, hydrogen atom
energy levels and eigenfunctions, principal, orbital, and magnetic quantum numbers, electron
probability density.




SEMESTER - 4
QUANTUM PHYSICS-II

UNIT-I
Radiative transitions, selection rules, and lifetimes,
Spectrum of hydrogen atom.
Normal Neeman effect and experiment, degeneracy of H-atom energy levels, fine structure, electron
angular momentum, Larmor’s frequency, electron spin angular momentum, exclusive principle, Stern-Gerlach experiment, spin-orbit coupling, electron magnetic moment, total angular momentum, hyperfine
structure, examples of one-electron systems, anomalous Zeeman effect, Lande-g factor (sodium D-lines).
Paschen-Back Effect, Stark Effect.

UNIT II
Symmetric and antisymmetric wave functions, exclusion principle, many-electron atoms, Slater
determinant, electronic configurations, Hund’s rule, Spin-orbit coupling, L-S coupling, J-J couplings, term
symbols. Atomic spectra of H, Na, He, and Hg, selection rules.
X-ray spectra, nomenclature, selection rules, Mosley law, Auger effect.
Molecular bonding, H₂⁺ ions and H₂ molecules, complex molecules, molecular spectra, selection rules,
symmetric structures, rotational vibrational levels and spectra of diatomic molecules, vibration-rotation
spectra, electronic spectra of molecules, Franck Condon principle, fluorescence and phosphorescence,
Raman Effect, magnetic resonance experiments.

Explore the fascinating realm of particles, waves, and fundamental forces with "Modern Physics," expertly written by Dr. A.K. Sikri and published by Pradeep Publications. Designed specifically for B.Sc. 2nd Year students at Panjab University, Chandigarh, this comprehensive book provides a solid foundation in the principles that govern the modern understanding of physics.


As students embark on their journey through the complexities of modern physics, they will encounter pivotal concepts such as the origin of quantum mechanics, which revolutionizes our understanding of the atomic and subatomic world. Dr. Sikri's clear and engaging style makes intricate subjects accessible to all learners, setting the stage for in-depth discussions on the nature of reality.


The book delves into crucial topics like the wave function and the Schrödinger equation, offering insights into how these fundamental equations shape our perception of physical systems. Students will appreciate the author’s thorough treatment of operators, eigenvalues, and eigenfunctions, which are essential components of quantum mechanics. The solution of the time-independent Schrödinger equation is also expertly articulated, providing valuable tools for analyzing quantum states.


Further, "Modern Physics" explores the quantum theory of hydrogen atoms, offering students a glimpse into the fascinating world of atomic structure. In addition, the text covers complex atoms with one and many valence electrons, shedding light on the behavior of elements and contributing to a broader understanding of chemical interactions.


The book also addresses the importance of X-rays, molecules, and the application of differential equations in modern physics, allowing learners to grasp the interconnectedness of these concepts in real-world scenarios. By presenting scientific theories alongside practical applications, Dr. Sikri cultivates a learning environment that encourages student engagement and critical thinking.

1.Origin of quantum mechanics 

2.The wave function and the schrodinger equation

3.Operators,Eigenvalues and eigenfunctions 

4.Solution of time-independent schrodinger equation

5.Quantum theory of hydrogen atom 

6.Atoms with one valence electron 

7.Atoms with many electrons 

8.X-rays 

9.Molecules 

10.Differential equations 

Have Doubts Regarding This Product ? Ask Your Question

  • Q1
    What major topics are covered in "Modern Physics"?
    A1

    The book includes essential topics such as quantum mechanics, the Schrödinger equation, atomic theory, wave-particle duality, X-rays, and molecular structures.

  • Q2
    How does the book introduce the concept of quantum mechanics?
    A2

    It explores the origin of quantum mechanics and discusses pivotal theories that revolutionized our understanding of atomic and subatomic processes.

  • Q3
    What is the significance of the Schrödinger equation in the book?
    A3

    The book offers in-depth explanations of the Schrödinger equation, its solutions, and their critical role in quantum mechanics for analyzing physical systems.

  • Q4
    Are practical applications of modern physics concepts addressed in the book?
    A4

    Yes, the book emphasizes the application of modern physics theories through examples, showing their relevance in real-world scenarios.

  • Q5
    Does the book include diagrams and illustrations to enhance understanding?
    A5

    Yes, the book features diagrams and illustrative examples to clarify complex concepts, making them more accessible to students.

  • Q6
    What foundational knowledge is necessary to understand the material in "Modern Physics"?
    A6

    A basic understanding of classical physics, mathematics, and introductory quantum mechanics will help students grasp the more advanced topics presented.

  • Q7
    How does Dr. A.K. Sikri make difficult concepts more engaging for students?
    A7

    The author employs clear explanations, a structured approach, and relatable contexts to engage students, making complex theories easier to understand.

  • Q8
    What practical experiments are mentioned in the book?
    A8

    Important experiments such as the Davisson-Germer experiment, Compton effect, and various applications of the Schrödinger equation are discussed in detail.

  • Q9
    How does the book approach the wave function and its implications?
    A9

    The book discusses the wave function's role in quantum mechanics, including its probabilistic interpretation and the significance of boundary conditions.

  • Q10
    Is there a focus on any historical developments in physics within the book?
    A10

    Yes, the book examines the historical context behind key developments in quantum mechanics, connecting students to the evolution of physical theories.

SEMESTER - 3

QUANTUM PHYSICS-I

UNIT-I
Formalism of Wave Mechanics:
(i) Planck’s formula of black body radiation and energy quantization,
Wave-particle duality—photoelectric effect, X-ray diffraction, Compton effect, pair production,
Photon and gravity.De Broglie waves, wave packets, phase velocity and group velocity, and electron microscopes
Particle in a box, particle diffraction, Davisson-Germer experiment, interferometry with
particles. Uncertainty principle with illustrations, Principle of complementarity.
(ii) Quantum mechanics, wave equation, plausible arguments leading to time-dependent Schrödinger
equations, Born’s interpretation of wave function, complex character, continuity, and boundary
conditions, probability interpretation, normalization, probability current, probability conservation
equation, Principle of superposition.
(iii) Fundamental postulates of quantum mechanics. Eigenvalues and eigenfunctions. Operator
formalism, position, momentum, and energy operators; expectation values; the Ehrenfest theorem;
Hermitian operators.

UNIT II
Problems in One and Three Dimensions:
(a) Steady-state Schrodinger equation, application to stationary states for one dimension, potential step.
potential barrier, tunnel effect examples, scanning tunneling microscope, rectangular potential
well, linear harmonic oscillator.
(ii) Schrödinger equation for spherically symmetric potential, spherical harmonics, hydrogen atom
energy levels and eigenfunctions, principal, orbital, and magnetic quantum numbers, electron
probability density.




SEMESTER - 4
QUANTUM PHYSICS-II

UNIT-I
Radiative transitions, selection rules, and lifetimes,
Spectrum of hydrogen atom.
Normal Neeman effect and experiment, degeneracy of H-atom energy levels, fine structure, electron
angular momentum, Larmor’s frequency, electron spin angular momentum, exclusive principle, Stern-Gerlach experiment, spin-orbit coupling, electron magnetic moment, total angular momentum, hyperfine
structure, examples of one-electron systems, anomalous Zeeman effect, Lande-g factor (sodium D-lines).
Paschen-Back Effect, Stark Effect.

UNIT II
Symmetric and antisymmetric wave functions, exclusion principle, many-electron atoms, Slater
determinant, electronic configurations, Hund’s rule, Spin-orbit coupling, L-S coupling, J-J couplings, term
symbols. Atomic spectra of H, Na, He, and Hg, selection rules.
X-ray spectra, nomenclature, selection rules, Mosley law, Auger effect.
Molecular bonding, H₂⁺ ions and H₂ molecules, complex molecules, molecular spectra, selection rules,
symmetric structures, rotational vibrational levels and spectra of diatomic molecules, vibration-rotation
spectra, electronic spectra of molecules, Franck Condon principle, fluorescence and phosphorescence,
Raman Effect, magnetic resonance experiments.

0.00

0 Overall Rating
  • 5
    0
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    0

Try this product & share your review & thoughts

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