TY - BOOK AU - Sankaran Nair, K. AU - TI - Pre degree bhautikam U1 - 53=M PY - 0000/// CY - PB - KW - Physics KW - Optics KW - Biophysics KW - Astrophysics KW - Nuclear physics KW - Radioactivity KW - Quantum theory KW - Mechanics KW - Hydrostatics KW - Thermodynamics ER -