You have a piano, and you ask for the best piano
tuner EVER. You ask her to tune the piano
perfectly. She says “No problem, it will only
take”...
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About an hour
About a day
About a week
About a month
About forever
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1.
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5.
30
The speed of a photon in vacuum is known
precisely in all circumstances. It follows from the
uncertainty principle that nothing can be known
about the photon’s postion.
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1. True
2. False
3. False, but
because the
speed is not really
known precisely
Tr
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30
A free electron moves along the x-axis, and has a localized
wave function. The uncertainty in its momentum is
decreased if:
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The wave function is made
more narrow
The wave function is made
less narrow
Wave function is
unchanged, but its energy is
increased
Wave function is
unchanged, but its energy is
decreased
None of the above
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1.
30