When electrons strike a metal, photons can be knocked out. This is the reverse of the photoelectric effect, and is the way that your doctor's x-ray machine works. (There is a similar figure on p. 947 of Halliday.)
Suppose that an x-ray tube accelerates electrons to Ee = keV.
a) Write a symbolic equation that tells you the highest energy x-ray produced. Your answer will contain some of the following quantities: the electron energy, Ee, Planck's constant, h, the photon frequency, f, the electron charge, e, and the work function, phi.
Egmax =
b) What is the energy in Joules of the highest energy x-ray produced?
E = J
c) What is the wavelength in nm of the shortest wavelength of x-rays produced?
l = nm
d) What is the frequency in Hz of the highest frequency x-rays produced?
f = Hz
