00660nam a2200217Ia 4500008004000000020001500040041000800055082001300063100001600076245003500092260006700127300000800194650000700202650001200209650001100221650001700232690001900249906001100268999001900279952014400298210210b2002   xxu||||| |||| 00| 0 eng d  a8122414087  aeng  a539 SINI  aSINGH (R B)  aIntroduction to modern physics  aNew DelhibNew Age International (P) Limited  Publishersc2002  a597  ato  aphysics  amodern  aIntroduction  aModern Physics  a061886  c115700d115700  00102ddc40708PHYaALbALcSKd2021-02-17eKnowledge Worldg275.00l2o539 SINIp061886r2024-05-09 00:00:00s2023-09-04w2021-02-17yBK