Question:medium
Angular momentum of an electron in a hydrogen atom is \( \dfrac{3h}{\pi} \). Then the energy of the electron is ____ eV.
Angular momentum of an electron in a hydrogen atom is \( \dfrac{3h}{\pi} \). Then the energy of the electron is ____ eV.
Updated On: Apr 10, 2026
- \(-1.51\)
- \(-0.85\)
- \(-0.38\)
- \(-0.28\)
Show Solution
The Correct Option is C
Solution and Explanation
Was this answer helpful?
0
Top Questions on Atoms and Nuclei
Assuming the experimental mass of \( {}^{12}_{6}\text{C} \) as 12 u, the mass defect of \( {}^{12}_{6}\text{C} \) atom is____MeV/\( c^2 \).
(Mass of proton = 1.00727 u, mass of neutron = 1.00866 u, 1 u = 931.5 MeV/\( c^2 \))- JEE Main - 2026
- Physics
- Atoms and Nuclei
- In the hydrogen atom, the electron makes a transition from the higher orbit ($i$) to a lower orbit ($f$). The ratio of the radius of the orbits in given by $r_i : r_f = 16 : 4$. The wavelength of photon emitted due to this transition is _________ nm. (Given Rydberg constant $= 1.097 \times 10^7 \text{ /m}$)
- JEE Main - 2026
- Physics
- Atoms and Nuclei
The binding energy per nucleon of \(^{209} \text{Bi}\) is _______ MeV. \[ \text{Take } m(^{209} \text{Bi}) = 208.98038 \, \text{u}, \, m_p = 1.007825 \, \text{u}, \, m_n = 1.008665 \, \text{u}, \, 1 \, \text{u} = 931 \, \text{MeV}/c^2. \]
- JEE Main - 2026
- Physics
- Atoms and Nuclei
- An atom of lithium contains 3 electrons, 3 protons and 4 neutrons. Its mass number is:
- ICSE Class X board - 2026
- Physics
- Atoms and Nuclei
- Want to practice more? Try solving extra ecology questions todayView All Questions
