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Chapter 4: Q26E (page 135)
A beam of electrons of kinetic energy is directed at a single slip of 2.0 渭m width, then detected at a screen 4m beyond the slit. How far from a point directly in the line of the beam is the first location where no electrons are ever detected?
The line of the beam is detected at
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How slow would an electron have to be traveling for its wavelength to be at least?
Question: Starting with the assumption that a general wave function may be treated as an algebraic sum of sinusoidal functions of various wave numbers, explain concisely why there is an uncertainty principle.
A visual inspection of an ant of mass 0.5 mg verifies that it to within an uncertainty of of a given point, apparently stationary. How fast might the ant actually be moving?
The p0 is a subatomic particle of fleeting existence. Data tables don't usually quote its lifetime. Rather, they quote a "width," meaning energy uncertainty, of about 150MeV. Roughly what is its lifetime?
Roughly speaking for what range of wavelengths would we need to treat an electron relativistically, and what would be the corresponding range of accelerating potentials? Explain your assumptions.
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