An X-ray tube operates at 40 kV. Suppose the electron converts 70% of its energy into a photon at each collision. Find the lowest three wavelengths emitted from the tube. Neglect the energy imparted to the atom with which the electron collides.

Question

Philoid · Accepted Answer

Given:

Potential of the X-ray tube V= 40kv

energy of the X-ray =

Energy utilized by the electron is given by

Wavelength of the X-ray is given by

for the second wavelength

E=30%

Therefore,

For the third wavelength,