TY - BOOK AU - Saxena A K AU - Saxena A K TI - Principles of modern physics SN - 9788184870688 (pbk) U1 - C, QO TC PY - 2010/// CY - New Delhi PB - Narosa Publishing House KW - Atomic structure and spectra KW - Hydrogen atom and periodic table KW - Quantum Hypothesis KW - Relativistic Mechanics KW - General Science N1 - References R.1-R.2 p.; Exercises E.1-E.16 p.; Index I.1-I.7 p ER -