00438nam a2200181Ia 4500003000400000005001700004008004100021020001800062040000700080041000800087082001700095100003500112245002000147260004000167300001700207365001300224650001900237OSt20230427112720.0210423s2011    xx            000 0 und d  a9788130900391  cAL  aeng  a539 KAKS223  aKAKANI (S L);KAKANI (shubhra).  aModern physics.  aNew DelhibViva Books Pvt Ltdc2011  axx,1183pbPB  b395cINR  aModern Physics