I want to become a physics scientist what I can study after my 12th
Dear Shaban,
You can prefer over one of the Ph.D. subjects of physics
-Astronomy
-Quantum mechanics
-Atomic
-Electronics
-Optical instrumentation
-Photonics
-Molecular Biophysics
-Plasma physics
-Nuclear physics
and there are many other Ph.D. degrees in physics. Choose one on your interest.
Pursue it in a well-reputed university or
join MSc in the IITs or IISER, clear GATE, then join Ph.D.
Go for research.
All the best.....!!!