Modern Physics Atomic Physics Mock Tests

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

An electron and a photon both have de Broglie wavelength lambda. The ratio of the kinetic energy of the electron to the energy of the photon is:

A de Broglie wavelength of an electron is equal to the wavelength of a photon. If the kinetic energy of the electron is K, the energy of the photon is:

An electron in a hydrogen atom makes a transition from n = 4 to n = 2. The wavelength of the emitted photon is (Rydberg constant R = 1.097 x 10^7 m^-1):

In a hydrogen atom, an electron transitions from the n = 4 energy level to the n = 2 energy level. The wavelength of the emitted photon is related to the Rydberg constant R by:

In a Bohr hydrogen atom, an electron transitions from the nth orbit to the ground state, emitting a photon of wavelength 102.6 nm. The value of n is:

A hydrogen atom in the ground state absorbs a photon of energy 12.09 eV. The principal quantum number of the excited state is (ionization energy of hydrogen = 13.6 eV):