# Physics II - Syllabus

Embark on a profound academic exploration as you delve into the Physics II course () within the distinguished Tribhuvan university's CSIT department. Aligned with the 2065 Syllabus, this course (PHY-156) seamlessly merges theoretical frameworks with practical sessions, ensuring a comprehensive understanding of the subject. Rigorous assessment based on a 60+20+20 marks system, coupled with a challenging passing threshold of , propels students to strive for excellence, fostering a deeper grasp of the course content.

This 3 credit-hour journey unfolds as a holistic learning experience, bridging theory and application. Beyond theoretical comprehension, students actively engage in practical sessions, acquiring valuable skills for real-world scenarios. Immerse yourself in this well-structured course, where each element, from the course description to interactive sessions, is meticulously crafted to shape a well-rounded and insightful academic experience.

**Course Synopsis:**

**Goal:**The course aims at providing fundamental physical concepts needed to understand information processing and related devices.

#### Units

3.1 Band structure of semiconductors, energy gap

3.2 Electrons and holes, electric conduction in semiconductors, effective mass, extrinsic and extrinsic semiconductors

3.3 n-type and p-type semiconductors, carrier concentration, mobility, temperature dependence.

3.4 p-n junction

3.5 Metal semiconductor junction, Schottky junction, Ohmic contact.

Modern Physics

2.1 Introduction to Quantum mechanics

2.1.1 Wave particle duality, de Broglie's matter Waves, phase-velocity and group velocity

2.1.2 Heisenberg's uncertainty principle.

2.1.3 Basic postulates of q m

- dynamical variable - linear operator

- eigen values of linear hermitian operator

- measurement of a dynamical variable

- Schrödinger equation

- interpretation of wave function

2.1.4 Simple applications of Schrödinger equation

- particle in a box, infinite potential well

- barrier penetration

- square potential well

- linear harmonic oscillator

- hydrogen atom

- rigid rotator

2.2 Band Theory of Solids

2.2.1 Crystalline structure of solids, Bravais lattice miller indices, reciprocal lattice, examples

2.2.2 Band theory of solids: origin of Bands

2.2.3 Classification of solid conductor, insulator and semi conductors

2.2.4 Free electron theory of metal: Fermi energy, electron energy distribution, thermo ionic emission Schottky effect, contact potential.

Statistical Physics

1.1 Macroscopic and microscopic description of a thermodynamic system; ensemble, phase space.

1.2 Thermodynamic probability, fundamental postulates of stat. physics.

1.3 Entropy and probability Bolltzmann theorem, statistical equilibrium

1.4 Maxwell-Boltzmann distribution for ideal gas

1.5 Quantum Statistics:

1.5.1 Bose-Einstein statistics-Photon Gas, Planck's law for Black Body Radiation

1.5.2 Fermi - Dirac statistics- application to electron gas