Chapter 34: Problem 6
Suppose the Compton effect were significant at radio wavelengths. What problems might this present for radio and TV broadcasting?
Chapter 34: Problem 6
Suppose the Compton effect were significant at radio wavelengths. What problems might this present for radio and TV broadcasting?
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An electron is moving in the \(+x\) -direction with speed measured at \(50 \mathrm{Mm} / \mathrm{s}\), accurate to \(\pm 10 \% .\) What's the minimum uncertainty in its position?
Helium with one of its two electrons removed acts very much like hydrogen, and the Bohr model successfully describes it. Find (a) the radius of the ground-state electron orbit and (b) the photon energy emitted in a transition from the \(n=2\) to the \(n=1\) state in this singly ionized helium.
A proton and electron have the same de Broglie wavelength. How do their speeds compare, assuming \(v \ll c\) for both?
(a) Find the cutoff frequency for the photoelectric effect in copper. (b) Find the maximum energy of the ejected electrons if the copper is illuminated with light of frequency \(1.8 \times 10^{15} \mathrm{Hz}\).
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