CLASSICAL MECHANICS

Paper Code: 
PHY 121
Credits: 
4
Contact Hours: 
60.00
Max. Marks: 
100.00
12.00
Unit I: 
Calculus of variation and its application to simple problems:

Basic concepts of coordinate systems and degrees of freedom; Holonomic and non-holonomic constraints; D-Alembert's Principle; Generalized coordinates; Principle of virtual work;  Lagrangian, Lagrange's equation and its applications; Velocity dependent potential in Lagrangian formulation; Generalized momentum; Hamilton's Principle; Lagrange’s equation from Hamilton's Principle.

12.00
Unit II: 
Conservation principle

Conservation principle and Noether's theorem; Conservation of energy, linear momentum and angular momentum as a consequence of homogeneity of time and space and isotropy of space respectively.

12.00
Unit III: 
Eulerian angles:

Eulerian angles; Euler’s theorem; Angular momentum and Inertia Tensor; Euler’s equations; Euler’s equation of motion for a rigid body.

12.00
Unit IV: 
Canonical transformation:

 Legendre transformations; Generating functions; Conditions for Canonical transformation; Bilinear invariant conditions; Lagrange's and Poisson’s brackets and their relations; Angular momentum and Poisson Brackets; equation of motion in Poisson bracket formulation; Invariance of Poisson’s and Lagrange’s Brackets under canonical transformations; Liouville's theorem.

12.00
Unit V: 
Action angle variable:

Hamilton Jacobi equation and its applications; adiabatic invariance of action variable; The Kepler problem in action angle variables; theory of small oscillations in Lagrangian formulation; theory of small oscillations in normal coordinates and normal modes; Two coupled oscillator and solution of its differential equation; Two coupled pendulum; Double pendulum.
 

Essential Readings: 

1. “Classical Mechanics” N.C. Rana and P.S. Joag, Tata Mc Graw Hill
2. “Classical Mechanics” J.C.  Upadhyaya, Himalaya Publishing House.

References: 

1.  “Classical Mechanics”, Goldstein, Addison Wesley
2   “Mechanics-Volume I “, Landau. And Lifshiz,
3.  “Classical Mechanics “, A. Ray choudhary.
 

Academic Year: