In a Compton Scattering Experiment, An X-ray Photon. Scatters through an angle o

Question

In a Compton Scattering Experiment, An X-ray Photon. Scatters through an angle of 11.8 degree from a free electron that is initially at rest. The electron recoils with a speed of 2, 280 km/s. Calculate the wavelength of the incident photon. Nm Calculate the angle through which the electron scatters In the ground state of hydrogen, the uncertainty in the position of the electron is roughly 0.10 nm. If the speed of the electron is approximately the same as the uncertainty in its speed, about how fast is it moving? 10 m/s A light source of wavelength lambda illuminates a metal and ejects photoelectrons with a maximum kinetic energy of 1.02 ev A second light source of wavelength lambda/2 ejects photoelectrons with a maximum kinetic energy of 7.40 eV What is the work function of the metal? eV

Explanation / Answer

Heisenberg Uncertainty Principle states that
xp h/4
or
xmv h/4...........since p=mv and m is constant
v 0.96 * 10^6 m/s

Uncertainty in v 0.96*10^6 m/s

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