00294nam a2200121Ia 4500008004100000041001200041082001600053100001300069245003700082260003300119300000800152650001200160221030s9999    xx            000 0 und d  aEnglish  a105.23bKum  aN. Kumar 0aKalyani Objective Series Physics  bKalyani PubaNew Delhic1997  a995  aPhysics