Question 1

In the Bohr model of the hydrogen atom, how is the circumference Cn of the nth orbit of the electron related to the de Broglie wavelength λn of the electron?

Accepted Answer

A)   λn = Cn
B)   λn = Cn/n
C)   λn = nCn
D)   λn = Cn/n2
E)   λn = Cn/2πF) A) and B)
G) C) and D)

Question 2

Excited atomic states that last for a relatively long time are called

Accepted Answer

A)   laser states.
B)   metastable states.
C)   amplification states.
D)   radiation states.
E)   cascading states.F) D) and E)
G) A) and D)

Question 3

The statistical interpretation of the wave function originated with

Accepted Answer

A)   Max Born.
B)   Niels Bohr.
C)   Albert Einstein.
D)   Erwin Schrödinger.
E)   Max Planck.F) C) and E)
G) A) and B)

Question 4

What is the de Broglie wavelength of a neutron with kinetic energy 44.0 keV? The mass of a neutron is 939.6 MeV/c2.

Accepted Answer

A)   56.4 pm
B)   0.136 pm
C)   0.166 pm
D)   2.83 pm
E)   5.11 pmF) A) and E)
G) All of the above

Question 5

For a particle in a one-dimensional box, what happens to the ground-state energy if the width of the box is halved?

Accepted Answer

A)   nothing, it stays the same
B)   it doubles
C)   it halves
D)   it quadruples
E)   it quartersF) A) and B)
G) C) and D)

Question 6

If the momentum of a particle is doubled, what happens to its de Broglie wavelength?

Accepted Answer

A)   It doubles.
B)   It halves.
C)   It slightly more than doubles.
D)   It becomes slightly less than half.
E)   It decreases by a factor of 2−1/2.F) A) and B)
G) C) and E)

Question 7

The uncertainty principle was formulated by

Accepted Answer

A)   Albert Einstein.
B)   Niels Bohr.
C)   Werner Heisenberg.
D)   Max Planck.
E)   Paul Dirac.F) A) and B)
G) B) and E)

Question 8

The configuration 1s22s22p63s23p1 is for what element?

Accepted Answer

A)   B
B)   F
C)   Ne
D)   Al
E)   CrF) B) and D)
G) C) and E)

Question 9

The word laser is an acronym for

Accepted Answer

A)   light amplification by stimulated emission of radiation.
B)   lighting by advanced showers of energetic rays.
C)   local atomic spectroscopy for emission and ranging.
D)   loop axial staged emergence radiometer.
E)   large area scanning electron repeater.F) All of the above
G) A) and E)

Question 10

Which of the following demonstrates the wave properties of light?

Accepted Answer

A)   photoelectric effect
B)   Compton effect
C)   diffraction
D)   pair productionE) A) and B)
F) B) and C)

Question 11

Alkali metals have how many electrons past the noble gas configuration?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) C) and D)
G) None of the above

Question 12

Which of the following demonstrates the particle properties of light?

Accepted Answer

A)   diffraction
B)   interference
C)   photoelectric effect
D)   refractionE) All of the above
F) None of the above

Question 13

An electron and a neutron have the same de Broglie wavelength. Which statement is true?

Accepted Answer

A)   The electron and neutron have the same kinetic energy, but the electron has the higher speed.
B)   The neutron has more kinetic energy but the two have the same speed.
C)   The electron has more kinetic energy and a higher speed.
D)   The electron has less kinetic energy and a lower speed.
E)   The electron has less kinetic energy but a higher speed.F) B) and E)
G) C) and E)

Exam 28: Quantum Physics

The configuration 1s²2s²2p⁶3s²3p¹ is for what element?

Correct Answer
verified

The statistical interpretation of the wave function originated with

Correct Answer
verified

The uncertainty principle was formulated by

Correct Answer
verified

What is the de Broglie wavelength of a neutron with kinetic energy 44.0 keV? The mass of a neutron is 939.6 MeV/c².

Correct Answer
verified

Which of the following demonstrates the particle properties of light?

Correct Answer
verified

An electron and a neutron have the same de Broglie wavelength. Which statement is true?

Correct Answer
verified

If the momentum of a particle is doubled, what happens to its de Broglie wavelength?

Correct Answer
verified

Which of the following demonstrates the wave properties of light?

Correct Answer
verified

Alkali metals have how many electrons past the noble gas configuration?

Correct Answer
verified

The word laser is an acronym for

Correct Answer
verified

In the Bohr model of the hydrogen atom, how is the circumference C_n of the n^th orbit of the electron related to the de Broglie wavelength λ_n of the electron?

Correct Answer
verified

Excited atomic states that last for a relatively long time are called

Correct Answer
verified

For a particle in a one-dimensional box, what happens to the ground-state energy if the width of the box is halved?

Correct Answer
verified

Exam 28: Quantum Physics

The configuration 1s22s22p63s23p1 is for what element?

Correct AnswerverifiedShow Answer

The statistical interpretation of the wave function originated with

Correct AnswerverifiedShow Answer

The uncertainty principle was formulated by

Correct AnswerverifiedShow Answer

What is the de Broglie wavelength of a neutron with kinetic energy 44.0 keV? The mass of a neutron is 939.6 MeV/c2.

Correct AnswerverifiedShow Answer

Which of the following demonstrates the particle properties of light?

Correct AnswerverifiedShow Answer

An electron and a neutron have the same de Broglie wavelength. Which statement is true?

Correct AnswerverifiedShow Answer

If the momentum of a particle is doubled, what happens to its de Broglie wavelength?

Correct AnswerverifiedShow Answer

Which of the following demonstrates the wave properties of light?

Correct AnswerverifiedShow Answer

Alkali metals have how many electrons past the noble gas configuration?

Correct AnswerverifiedShow Answer

The word laser is an acronym for

Correct AnswerverifiedShow Answer

In the Bohr model of the hydrogen atom, how is the circumference Cn of the nth orbit of the electron related to the de Broglie wavelength λn of the electron?

Correct AnswerverifiedShow Answer

Excited atomic states that last for a relatively long time are called

Correct AnswerverifiedShow Answer

For a particle in a one-dimensional box, what happens to the ground-state energy if the width of the box is halved?

Correct AnswerverifiedShow Answer

The configuration 1s²2s²2p⁶3s²3p¹ is for what element?

Correct Answer
verified

Correct Answer
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Correct Answer
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What is the de Broglie wavelength of a neutron with kinetic energy 44.0 keV? The mass of a neutron is 939.6 MeV/c².

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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In the Bohr model of the hydrogen atom, how is the circumference C_n of the n^th orbit of the electron related to the de Broglie wavelength λ_n of the electron?

Correct Answer
verified

Correct Answer
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Correct Answer
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