In: Physics
Solution:
The wavelength of an electron is related to Kinetic energy by the equation,
where is the planck's constant and is the mass.
(a) Given,
So, The wavelength is given by
(b) The wavelength of an EM wave is related to its energy E by
Given,
Thus,
The frequency is given by,
Comparing, wavelength of electron and x-rays, we have
(c) The electrons are accelerated with 5 kV voltage in the cathode ray tube. So, the short wavelength limit (SWL) is given by,