Prepare for NEET Physics Atoms (Bohr’s Model Of Atom) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert explanations to study quantized orbits and energy levels.
Consider a hypothetical universe where the electrostatic force between two charges is proportional to instead of . According to the Bohr model adapted for this universe, how would the radius of the nth orbit () depend on n?
r_n ∝ n²
r_n ∝ n
r_n ∝ 1/n
r_n ∝ 1/n²
In the Bohr model, the ratio of the kinetic energy (K) to the potential energy (U) of an electron in the nth orbit is:
1/2
-1/2
1
-1
Which of the following is NOT a limitation of Bohr's model?
It fails to explain the spectra of multi-electron atoms.
It doesn't account for the wave nature of electrons.
It violates the Heisenberg uncertainty principle.
It correctly predicts the energy levels of hydrogen-like species.
If the radius of the first Bohr orbit of a hydrogen atom is , what is the radius of the first Bohr orbit of a ion?
According to Bohr's model, the angular momentum of an electron in the nth orbit is given by:
nh/2π
2π/nh
n/2πh
2nh/π
Which of the following transitions in a hydrogen atom emits radiation with the longest wavelength?
n=3 to n=2
n=4 to n=3
n=5 to n=4
n=6 to n=5
Bohr's model is applicable to:
All atoms
Multi-electron atoms
Single electron species
Molecules
