chapter 11: quantum physics Flashcards
The energy of a photon depends on
color
Stimulated emission is important for
lasers
Transistors use semiconductors with different
energy gaps
Compact Disk readers use
lasers
To tell hydrogen from helium, look at
their visible spectrum
Quantum computers are
not yet very good at anything
the energy gap is important for (all that apply)
all of the above
Quanta are not observed in water waves because
the energy of the quanta are too small
Xerox machines make use of
photoelectric effect
high temperature superconductors operate at approximately
150K (liquid nitrogen)
lasers are useful because (all that apply)
all of the above
a laser operates on the principle of
photon avalanche
a transistor is
a device that can amplify or turn AC to DC
the quantum chain reaction refers to
a laser
An electron is in orbit around a proton. What is the maximum number of orbits it can be in at the same time?
any number
Which of the following depend on an energy gap (all that apply)
all of the above
The photoelectric effect is important for all of the following except
polarized sunglasses
superconducting materials allow electrons to move without a loss of energy because
there is an energy gap
Computer circuits are based on which material
silicon
