00345nam a22001097a 450000500170000002000180001708200170003510000140005224501130006626000420017930000140022120260529140829.0  a9788121909099  a530.1bARO/B  aArora,C L  aBsc practical physics:bfor B.Sc.(pass & honours) and B.Tech students of all Indian Universities/cC.L.Arora  aNoidabS Chand and company ltd.c1995  axiv,693p.