Atoms And Nuclei Mock Tests

A nuclear reactor is based on the principle of:

The energy equivalent of 1 u (atomic mass unit) in MeV is approximately:

In the Bohr model of the hydrogen atom, the electron transitions from n = 3 to n = 1. The wavelength of the emitted photon belongs to which spectral series:

The energy equivalent of 1 kg mass is: (c = 3 × 10⁸ m/s)

In a hydrogen atom, an electron transitions from n = 4 to n = 1. The wavelength of the emitted photon is in the: (Rydberg constant R = 1.097 × 10⁷ m⁻¹)

In a hydrogen atom, an electron transitions from n = 3 to n = 1. The wavelength of the emitted photon is in the: (Rydberg constant R = 1.097 × 10⁷ m⁻¹)

The energy levels of a hydrogen atom are given by E_n = -13.6/n² eV. The energy required to excite an electron from n = 1 to n = 3 is:

In a nuclear fission reaction, energy is released because: