An x ray tube has an applied voltage of 100 kv.

a. what is the most energetic x-ray photon it can produce? express your answer in electron volts and joules.
b. find the wavelength of such an x—ray.

To solve this problem we will apply the concepts related to Energy in a photon and the electric potential energy. With these two definitions we can solve the first two points. The energy in a photon is described under the mathematical relationship

Here,

E = Energy of photons

h = Planck's constant

c = Speed of light

Wavelength

At the same time the electric potential energy is defined as

E = qV

Where,

q = Charge of electron

V = Voltage

PART A ) The charge of the electron is a constant while the voltage was previously given, therefore

PART B) From the first definition, about energy in a photon, we can use it to find the wavelength. Energy is therefore conserved, the previously found value will serve us for that variable. The other two terms are constant, so replacing

Therefore the wavelength of the X-ray is

it is called kinetic energy