NSEP · Physics · Atoms and Nuclei
Bohr postulates, energy levels and hydrogen spectral series.
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Q1 · Bohr Atom and Spectra · HARD
In Bohr's model of hydrogen atom, an electron transitions from n = 4 to n = 2 state. If the energy of the photon emitted is E, what will be the energy of the photon emitted when the electron transitions from n = 2 to n = 1?
Q2 · Bohr Atom and Spectra · MEDIUM
An electron in a hydrogen atom makes a transition from n = 4 to n = 2 energy level. What is the wavelength of the photon emitted? (Rydberg constant R = 1.097 × 10⁷ m⁻¹)
Q3 · Bohr Atom and Spectra · HARD
In the Bohr model of hydrogen atom, an electron transitions from n = 4 to n = 2 energy level. If the energy of the photon emitted in a transition from n = 2 to n = 1 is E₀, what is the energy of the photon emitted in the n = 4 to n = 2 transition?
Q4 · Bohr Atom and Spectra · MEDIUM
In the Bohr model of hydrogen atom, an electron in the nth orbit has angular momentum L. If the electron makes a transition to the (n−1)th orbit, the change in angular momentum is:
Q5 · Bohr Atom and Spectra · EASY
In Bohr's model of hydrogen atom, an electron makes a transition from n = 4 to n = 2 state. The ratio of the angular momentum of the electron in these states is: