When an electron stops, it emits a photon with energy equal to the kinetic energy lost by the electron:
The energy of the photon is
where
is the Planck constant and f is the frequency. Therefore, the maximum frequency of the emitted photon occurs when the loss of kinetic energy is maximum.
The maximum loss of kinetic energy of the electron occurs when the electron stops completely, so it loses all its energy:
Keeping in mind that
, we have
And so, this corresponds to the energy of the emitted photon, E. Therefore, we can find the maximum frequency of the emitted photon:
Answer:
it is the protons
Explanation:
the protons is positively charged and the number can tell you the element in the periodic table
Physical Science is the study of non-living systems, as opposed to a study of biological sciences or living systems. It consists of physics, chemistry, astronomy and earth science. It also includes scientific method and experimentation
Answer:
A rubber rod can be charged negatively when it is rubbed with wool. If the rubber rod is charged negatively, a positive charge is induced into the wool. Remember, whenever two neutral objects are rub against each other , an opposite charge is induced in both of the objects.