00289nam a2200133Ia 4500020000900000082001100009100001800020245004700038250000600085260004200091300000800133500000800141650000600149  aNULL  a530.15  aGoswami, S.N. 0aAdvanced problems and solutions in physics  a-  aCalcuttabBooks And Allied  P  LTD.  a610  a524  a-