Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
Pearson eText -- Physics for Scientists and Engineers with Modern Physics -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137488179
Author: Douglas Giancoli
Publisher: PEARSON+
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Chapter 37, Problem 8Q
To determine

The metal which will have a maximum kinetic energy of the electrons.

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0.062-nm photons are incident on stationary electrons. A scattered photon is observed at 134°. Find its wavelength, 2'= 6.61e-2 nm, and energy, E',= 18.8 kev. The kinetic energy of the recoiled electron is KE= 1.25 kev. What is the maximum kinetic energy of recoiled electrons exposed to these photons? KEm Emax= kev.
A sheet of metal is illuminated by photons with a wavelength of 325 nm and the emitted electrons are found to have a maximum kinetic energy of 1.25 eV.  If the same metal is illuminated by 225 nm light, what will be the maximum speed of emitted electrons? Give your answer in km/s to 3 significant digits.
Electrons are accelerated from rest in a vacuum tube by an accelerating voltage. They strike a target and release x-rays as a result of the collision. If the highest-energy x-ray photons emitted by the target have a wavelength of 8.00 ✕ 10−11 m, what accelerating voltage (in V) is required? answer in V
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