rather than research field what other things can physics graduate do?
After Graduation in Physics, you perhaps have many other options apart from Research. Some of them are listed below
1. MCA, followed by a Career in the IT/Software/Services Sector
2. Teaching & Academia (BEd/MSc). Nowadays ypu also have strong prospects with EdTech Companies after Post Graduation as well as Coaching Institutes.
3. After B.Sc. and M.Sc. in Physics, you may pursue MTech in an Interdisciplinary branches like Muclear Material Science, Data Science, Quality, Engineering Physics, VLSI, at some of the Higher Technical Institutes like Top IITs, NITs and so on. You may even pursue a Career in Statistics, Quantitative Methods, Operations Research and Analytics after relevant Postgraduation from Institutes like ISI.
4. MBA
5. Government Services, UPSC CSE, State PCS, SSC CGL, Railways RRB, RBI Grade B, SBI PO, IBPS PO and many others.
6. After B.Sc. in Physics, you may get opportunities as Project Assistant, Research Associate at many Higher Technical Institutions as well as many CSIR Labs.
7. Data Science/Data Analytics/Business Analytics, with relevant Certifications and Projects apart from B.Sc. in Physics.