Previous material H atom laser blackbody radiation New material QM wavefunction Physics 274 10132016 In order for a proton to have the same momentum as an electron A the proton must have a shorter de Broglie wavelength than the electron ID: 561484
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Slide1
Quiz_18Previous material – H atom, laser, blackbody radiationNew material – QM wavefunction
Physics 274
10/13/2016Slide2
In order for a proton to have the same momentum as an electron,
A. the proton must have a shorter de Broglie wavelength than the electron.
B. the proton must have a longer de Broglie wavelength than the electron.
C. the proton must have the same de Broglie wavelength as the electron.D. not enough information given to decide
Q.1Slide3
Q.2
Which of the following statements is correct?
Spontaneous emission emits photons in random directions at random times
Stimulated emission emits photons in random directions and random timesBoth spontaneous emission and stimulated emission emit photons in random directions and random timesBoth spontaneous emission and stimulated emission emit photons in the same direction.Slide4
Q.3
As you increase the temperature of a blackbody, which of the following statements is true?
It radiates more high frequency photons
It radiates fewer high frequency photons.Its radiation spectrum is independent of temperature.I(λ)~λ4Slide5
Q.4
According to quantum theory, which of the following statements is true?
The
wavefunction Ψ(x,t) determines the position of a particle at location x and time t.The wavefunction Ψ(x,t) is real and gives the probability of finding the particle at location x and time t.The wavefunction
is complex and |
Ψ
(
x,t
)|
2
dx
gives the probability of finding the particle
between
location x
and
x+dx
at time
t
.
The
wavefunction
is complex and
|
dΨ
(
x,t
)/dt|
2
dx gives the probability of finding the particle between location x and
x+dx
at time t.