The X-ray coming from a Coolidge tube has a cutoff wavelength of 80 pm. Find the kinetic energy of the electrons hitting the target.
Given:
Cutoff wavelength of the Coolidge tube,
λ=80pm
Energy of the electron hitting the target
E is given by
Here,
h=Planck’s constant
c = Speed of light
λ= Wavelength of light
∴
⇒
≈15.5 keV