Physics Principles and Problems 2009

Section 28.2 : The Quantum Model of the Atom

Self-Check Quizzes

1
What is region of high probability of finding an electron called?
A)electron orbit
B)electron cloud
C)quantum location
D)electron coordinate
2
What process produces laser light?
A)spontaneous emission
B)quantum mechanics
C)stimulated emission
D)electronic stimulation
3
Why is laser light monochromatic?
A)because all the light is of one wavelength
B)because the temperature is kept constant
C)because the light is coherent
D)because it is produced by stimulated emission
4
For stimulated emission to occur, how long must atoms remain in the excited state?
A)the lifetime of a photon
B)several days
C)one hour or more
D)long enough to be struck by a photon
5
Which is not a use of laser light?
A)measure the movement of Earth's tectonic plates
B)provide light for reading
C)check the straightness of long tunnels
D)transmit electronic communication information
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