The correct set of quantum numbers for a 3d electron is
3, 2, 3, -1/2
3, 1, -1, +1/2
3, 2, 1, +1/2
None of these
Bohr concept of orbit in an atom contradicts
Pauli's exclusion Principle
Hund's rule
(n + l) rule
Uncertainty principle
The product of Δx and Δv is highest for
Neutron
Electron
Proton
α - particle
The observation that the ground state of nitrogen atom has 3 unpaired electrons in its electronic configuration is associated with
Heisenberg's uncertainty principle
Pauli's exclusion principle
Aufbau principle
Hund's rule of maximum multiplicity
The ratio of the radii of the 2nd and 3rd Bohr orbits in hydrogen atom is
3:8
3:4
9:16
4:9
The number of electrons in N3 - is
7
10
3
17
The wave length of a radio wave having frequency 2.5 × 105 Hz is
1.2 × 103m
1.2 × 10-3m
8.33 × 102m
In the photo electron emission, the energy of the emitted electron is
Smaller than that of the incident photon
Greater than that of the incident photon
Same as that of the incident photon
Proportional to the intensity of the incident photon
Two nodal planes are present in
px
dxy
2py
s
The de Broglie wave length of a particle of mass 0.5g and velocity 50m/s is
6.626 × 10-31m
2.65 × 10-32 m
2.65 × 10-31 m
none of these
