B.Sc Physics (H), Part - 1

Patna Science College, Patna University Patna

Langrange Equation

Dr. Aman Kumar

Dept of Physics, Patna Science College, Patna- 5

Email : dr.aman03@rediffmail.com

Mobile No : 8709432967

Derivation of Lagrange's equation from D' Alembert’s principle:

http://cbs.wondershare.com/go.php?pid=5610&m=db

This is Lagrange's equation of 2nd kind for the conservative holonomic system.

Cyclic or Ignorable Co-ordinates:

http://cbs.wondershare.com/go.php?pid=5610&m=db

http://cbs.wondershare.com/go.php?pid=5610&m=db

Gauge Function for Lagrangian:

Invariance of Lagrange's equations under Generalised Co-ordinate

transformations

Concept of Symmetry: Homogeneity and Isotropy:

http://cbs.wondershare.com/go.php?pid=5610&m=db