00274nam a2200109Ia 4500008004100000082001200041100002000053245002200073260004100095300001600136600001200152250522s9999    xx            000 0 und d  a530 KUM  aKumar, Narinder 0aObjective Physics  aLudhiana:bKalyani Publishers,c1994  aviii, 579p.  aPhysics