GATE-PH SERIES Atomic-and-molecular-physics
Atoms
3 previous year questions.
Volume: 3 Ques
Yield: Medium
High-Yield Trend
3
2024 Chapter Questions 3 MCQs
01
PYQ 2024
medium
atomic-and-molecular-physics ID: gate-ph-
Apart from the acoustic modes, 9 optical modes are identified from the measurements of phonon dispersions of a solid with the chemical formula , where and denote the atomic species, and and are integers. Which of the following combinations of and is/are possible?
1
2
3
4
02
PYQ 2024
medium
atomic-and-molecular-physics ID: gate-ph-
The non-relativistic Hamiltonian for a single electron atom is
where is the Coulomb potential and is the mass of the electron.Considering the spin-orbit interaction term:
added to , which of the following statements is/are true?
where is the Coulomb potential and is the mass of the electron.Considering the spin-orbit interaction term:
added to , which of the following statements is/are true?
1
commutes with .
2
commutes with and .
3
For a given value of principal quantum number and orbital angular momentum quantum number , there are degenerate eigenstates of .
4
, , , , and have a set of simultaneous eigenstates.
03
PYQ 2024
easy
atomic-and-molecular-physics ID: gate-ph-
An atom is subjected to a weak uniform magnetic field . The number of lines in its Zeeman spectrum for the transition from to is
1
8
2
10
3
12
4
5