What is the acceleration of a silver atom as it passes through the deflecting magnet in the Stern–Gerlach experiment of Fig. 40-8 if the magnetic field gradient is 1.4 T/mm?
The acceleration of the silver atom as it passes through the deflecting magnet in the experiment is .
Gradient of the magnetic field,
Using the formula of force from second Newton's law in the force value of the Stern-Gerlach Experiment, we can get the required acceleration by substituting the obtained data from the experiment.
The force is due to Newton’s second law of motion,
F = ma
The force obtained due to gradient change in a magnetic field,
Where, the Bohr magneton,
Using the value of force from equation (2) in equation (1), the value of the acceleration of the silver atoms as follows: (Using the data given in the Sample problem, )
Hence, the value of the acceleration of the silver atom is .
Which (if any) of the following are essential for laser action to occur between two energy levels of an atom?
(a) There are more atoms in the upper level than in the lower.
(b) The upper level is metastable.
(c) The lower level is metastable.
(d) The lower level is the ground state of the atom.
(e) The lasing medium is a gas.
A 20 keV electron is brought to rest by colliding twice with target nuclei as in Fig. 40-14. (Assume the nuclei remain stationary.) The wavelength associated with the photon emitted in the second collision is 130 pm greater than that associated with the photon emitted in the first collision. (a) What is the kinetic energy of the electron after the first collision? What are (b) the wavelength and (c) the energy associated with the first photon? What are (d) and (e) associated with the second photon?
94% of StudySmarter users get better grades.Sign up for free