00285    a2200121   4500020001500000082001300015100002100028245002400049250000900073260004900082300002000131650001200151  a8122414060  a530bSRI  aSrivastava, P.K.  aProblems in physics  a2nd.  aNew DelhibNew Age internationalc2002g2002  av, 633p.c23cm.  aPHYSICS