for the students of B.Sc. (Honours) and M.Sc. (Physics) Dass, H.K. creator Verma, Rama text New Delhi S. Chand 2014(repr.) 7th rev. ed monographic xvii,1375p. 24cm(pbk) by H.K. Dass ; assisted by Rama Verma Includes index 530.15 9788121914697 8121914698 BAC-EN21 ENG-111717 UBH/Ven dpl DBAD/PUB