Roland Dobbs Fulbright Scholar in Applied Mathematics (1958-1959) and Associate Professor of Physics (1959–1960) at Brown University, AEI Fellow at the Cavendish Laboratory, University of Cambridge (1960-1964), Professor and Head of Department of Physics, University of Lancaster (1964-1973), Head of Department of Physics at Bedford College, University of London (1973–1985) and Hildred Carlile Professor (1973-90). Following the merger of Bedford and Royal Holloway College, he was Head of Department of Physics, Royal Holloway and Bedford New College, 1985-90. On his retirement, he became Emeritus Professor. He held several visiting Professorships at Brown University, Rhode Island. U.S.A, Wayne State University, Michigan, U.S.A., University
Department of Physics, Quaid-e-Azam University President Ayub Khan, to make the proposed university a research institution. Siddiqui convinced the chairman of PAEC, dr IH Usmani, to send all the theoreticians in PAEC to the Institute of Physics at the University of Islamabad to form a theoretical physics group. Department of Physics, Quaid-e-Azam University The Department of Physics, Quaid-e-Azam University () (founded as the Institute of Physics, QAU), is an academic and research department of the Quaid-e-Azam University (Qau), Pakistan. It is also referred to as the Institute of Theoretical Physics. Established in 1966 with efforts led by Abdus Salam, the institute was located in Rawalpindi,