Question 1

What is the shortest wavelength photon that can be emitted by singly ionized helium (He+) ?

Accepted Answer

A)  23 nm
B)  46 nm
C)  54 nm
D)  91 nm
E)  365 nmF) A) and B)
G) C) and D)

Question 2

In a "muonic" atom an electron is replaced by a muon of mass 105.66 MeV which orbits a proton.What is the ground-state energy of the muon in this type of atom?

Accepted Answer

A)  -281 eV
B)  -632 eV
C)  -1264 eV
D)  -2528 eV
E)  -3254 eVF) A) and E)
G) None of the above

Question 3

A hydrogen atom is in a quantum state with principal quantum number n = 3.The atom emits a photon with a wavelength of 660 nm.Determine the maximum possible orbital angular momentum of the electron after emission.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) A) and E)
G) C) and E)

Question 4

A photon of wavelength 1.17  μ\muμ m is emitted by a He+ when the electron jumps from the n = 7 state.What is the final state of the electron?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5 F) A) and B)
G) A) and C)

Question 5

For  ,which value of m corresponds to a wave function that has its maximum probability in the x-y plane?

Accepted Answer

A)  l = 3,m = 0
B)  l = 3,m = 1
C)  l = 3,m = 2
D)  l = 3,m = 3
E)  l = 3,m = 4F) All of the above
G) B) and D)

Question 6

A laser (with wavelength of  ) excites the electron in a hydrogen atom from its ground state to its first excited state.What laser wavelength is required to raise the electron from the first excited state to its next lowest excited state?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) A) and B)
G) None of the above

Question 7

For an electron in the ground state of a hydrogen atom,what is the probability of finding that electron within a Bohr radius of the proton? The ground state wave function for hydrogen is  .

Accepted Answer

A)  0.124
B)  0.261
C)  0.323
D)  0.626
E)  0.752F) A) and E)
G) None of the above

Question 8

What is the angular momentum of an electron in an l = 4 level of the correct quantum mechanical hydrogen atom?

Accepted Answer

A)  1/2 Js
B)  0.5 * 105 Js
C)  0.1 * 1025 Js
D)  6.6 * 10-23 Js
E)  4.6 * 10-34 JsF) A) and C)
G) None of the above

Question 9

In the Bohr hydrogen atom,how many antinodes are there in the electron standing wave with a quantum number of 6?

Accepted Answer

A)  12
B)  6
C)  3
D)  5E) B) and C)
F) A) and B)

Question 10

He+ is a helium atom with one electron missing.Treating this like a hydrogen atom,what is the first excited state of this atom?

Accepted Answer

A)  -6.40 eV
B)  -13.6 eV
C)  -54.4 eV
D)  -76.8 eV
E)  -152.2 eVF) A) and B)
G) A) and E)

Question 11

A UV laser emits light that has a wavelength 350 nm.If 1.23 * 1018 photons are emitted in 10 ns,what is the power of the laser?

Accepted Answer

A)  77 MW
B)  92 MW
C)  83 MW
D)  70 MW
E)  5.0 MWF) B) and C)
G) B) and E)

Question 12

The wavelength of the  line of the Lyman group for the hydrogen spectrum is

Accepted Answer

A)  93 nm.
B)  106 nm.
C)  250 nm.
D)  397 nm.E) A) and B)
F) B) and D)

Question 13

A group of hydrogen-like atoms (atoms with only one electron) are in their ground state.Light of increasing intensity is shone at these atoms until the light becomes absorbed by the atoms.The lowest frequency of light when this occurs is 2.22 * 1016 Hz.What is the ground state energy of these atoms?

Accepted Answer

A)  91.8 eV
B)  13.6 eV
C)  218 eV
D)  122 eV
E)  54 eVF) None of the above
G) C) and D)

Question 14

Find the frequency of light emitted by a hydrogen atom when its electron makes the transition from the n = 5 state to the n = 2 state.

Accepted Answer

A)  2.3 * 106 Hz
B)  1.1 * 107 Hz
C)  6.9 * 1014 Hz
D)  3.3 * 1015 Hz
E)  3.8 * 1015 HzF) A) and B)
G) A) and E)

Question 15

The Pfund series results from emission/absorption of photons due to transitions of electrons in a hydrogen to/from the n=5 energy level from/to higher energy levels.What is the shortest wavelength photon emitted in the Pfund series?

Accepted Answer

A)  658 nm
B)  2.29 µm
C)  2.74 µm
D)  3.68 µm
E)  12.4 µmF) A) and C)
G) All of the above

Question 16

What is the energy of the orbiting electron in a hydrogen atom with a quantum number of 45?

Accepted Answer

A)  +3.8 * 10-3 eV
B)  -4.2 * 10-3 eV
C)  -6.7 * 10-3 eV
D)  +4.5 * 10-3 eVE) B) and C)
F) A) and D)

Question 17

The electron in a singly ionized helium atom,which consists of two protons,two neutrons and only one electron,makes a transition from the n = 2 state to the n = 1 state,emitting a single photon in the process.What is the energy of this photon?

Accepted Answer

A)  3.40 eV
B)  10.2 eV
C)  13.6 eV
D)  40.8 eV
E)  None are correct.F) A) and B)
G) None of the above

Question 18

What is the energy of the photon required to knock the electron out of a singly ionized Helium atom where the electron was in the n = 4 state?

Accepted Answer

A)  3.4 eV
B)  1.7 eV
C)  10.2 eV
D)  51 eVE) None of the above
F) A) and B)

Question 19

The Bohr model of hydrogen is based on the quantization of

Accepted Answer

A)  electrical charge.
B)  orbital angular momentum.
C)  electric force.
D)  magnetic force.E) B) and C)
F) A) and D)

Question 20

About how many photons are emitted per second by a yellow (600 nm) 60-mW laser?

Accepted Answer

A)  2 * 1015
B)  3 * 1019
C)  3 * 1018
D)  2 * 1012
E)  2 * 1017F) B) and E)
G) B) and C)

Exam 38: Atomic Physics

For ,which value of m corresponds to a wave function that has its maximum probability in the x-y plane?

Correct Answer
verified

A photon of wavelength 1.17 $\mu$ m is emitted by a He⁺ when the electron jumps from the n = 7 state.What is the final state of the electron?

Correct Answer
verified

The Bohr model of hydrogen is based on the quantization of

Correct Answer
verified

What is the energy of the photon required to knock the electron out of a singly ionized Helium atom where the electron was in the n = 4 state?

Correct Answer
verified

A hydrogen atom is in a quantum state with principal quantum number n = 3.The atom emits a photon with a wavelength of 660 nm.Determine the maximum possible orbital angular momentum of the electron after emission.

Correct Answer
verified

For an electron in the ground state of a hydrogen atom,what is the probability of finding that electron within a Bohr radius of the proton? The ground state wave function for hydrogen is .

Correct Answer
verified

About how many photons are emitted per second by a yellow (600 nm) 60-mW laser?

Correct Answer
verified

What is the energy of the orbiting electron in a hydrogen atom with a quantum number of 45?

Correct Answer
verified

The wavelength of the line of the Lyman group for the hydrogen spectrum is

Correct Answer
verified

What is the angular momentum of an electron in an l = 4 level of the correct quantum mechanical hydrogen atom?

Correct Answer
verified

A laser (with wavelength of ) excites the electron in a hydrogen atom from its ground state to its first excited state.What laser wavelength is required to raise the electron from the first excited state to its next lowest excited state?

Correct Answer
verified

A UV laser emits light that has a wavelength 350 nm.If 1.23 * 10¹⁸ photons are emitted in 10 ns,what is the power of the laser?

Correct Answer
verified

In the Bohr hydrogen atom,how many antinodes are there in the electron standing wave with a quantum number of 6?

Correct Answer
verified

He⁺ is a helium atom with one electron missing.Treating this like a hydrogen atom,what is the first excited state of this atom?

Correct Answer
verified

Correct Answer
verified

Find the frequency of light emitted by a hydrogen atom when its electron makes the transition from the n = 5 state to the n = 2 state.

Correct Answer
verified

What is the shortest wavelength photon that can be emitted by singly ionized helium (He⁺) ?

Correct Answer
verified

The Pfund series results from emission/absorption of photons due to transitions of electrons in a hydrogen to/from the n=5 energy level from/to higher energy levels.What is the shortest wavelength photon emitted in the Pfund series?

Correct Answer
verified

In a "muonic" atom an electron is replaced by a muon of mass 105.66 MeV which orbits a proton.What is the ground-state energy of the muon in this type of atom?

Correct Answer
verified

The electron in a singly ionized helium atom,which consists of two protons,two neutrons and only one electron,makes a transition from the n = 2 state to the n = 1 state,emitting a single photon in the process.What is the energy of this photon?

Correct Answer
verified

Exam 38: Atomic Physics

For ,which value of m corresponds to a wave function that has its maximum probability in the x-y plane?

Correct AnswerverifiedShow Answer

A photon of wavelength 1.17 μ\muμ m is emitted by a He+ when the electron jumps from the n = 7 state.What is the final state of the electron?

Correct AnswerverifiedShow Answer

The Bohr model of hydrogen is based on the quantization of

Correct AnswerverifiedShow Answer

What is the energy of the photon required to knock the electron out of a singly ionized Helium atom where the electron was in the n = 4 state?

Correct AnswerverifiedShow Answer

A hydrogen atom is in a quantum state with principal quantum number n = 3.The atom emits a photon with a wavelength of 660 nm.Determine the maximum possible orbital angular momentum of the electron after emission.

Correct AnswerverifiedShow Answer

For an electron in the ground state of a hydrogen atom,what is the probability of finding that electron within a Bohr radius of the proton? The ground state wave function for hydrogen is .

Correct AnswerverifiedShow Answer

About how many photons are emitted per second by a yellow (600 nm) 60-mW laser?

Correct AnswerverifiedShow Answer

What is the energy of the orbiting electron in a hydrogen atom with a quantum number of 45?

Correct AnswerverifiedShow Answer

The wavelength of the line of the Lyman group for the hydrogen spectrum is

Correct AnswerverifiedShow Answer

What is the angular momentum of an electron in an l = 4 level of the correct quantum mechanical hydrogen atom?

Correct AnswerverifiedShow Answer

A laser (with wavelength of ) excites the electron in a hydrogen atom from its ground state to its first excited state.What laser wavelength is required to raise the electron from the first excited state to its next lowest excited state?

Correct AnswerverifiedShow Answer

A UV laser emits light that has a wavelength 350 nm.If 1.23 * 1018 photons are emitted in 10 ns,what is the power of the laser?

Correct AnswerverifiedShow Answer

In the Bohr hydrogen atom,how many antinodes are there in the electron standing wave with a quantum number of 6?

Correct AnswerverifiedShow Answer

He+ is a helium atom with one electron missing.Treating this like a hydrogen atom,what is the first excited state of this atom?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Find the frequency of light emitted by a hydrogen atom when its electron makes the transition from the n = 5 state to the n = 2 state.

Correct AnswerverifiedShow Answer

What is the shortest wavelength photon that can be emitted by singly ionized helium (He+) ?

Correct AnswerverifiedShow Answer

The Pfund series results from emission/absorption of photons due to transitions of electrons in a hydrogen to/from the n=5 energy level from/to higher energy levels.What is the shortest wavelength photon emitted in the Pfund series?

Correct AnswerverifiedShow Answer

In a "muonic" atom an electron is replaced by a muon of mass 105.66 MeV which orbits a proton.What is the ground-state energy of the muon in this type of atom?

Correct AnswerverifiedShow Answer

The electron in a singly ionized helium atom,which consists of two protons,two neutrons and only one electron,makes a transition from the n = 2 state to the n = 1 state,emitting a single photon in the process.What is the energy of this photon?

Correct AnswerverifiedShow Answer

Correct Answer
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A photon of wavelength 1.17 $\mu$ m is emitted by a He⁺ when the electron jumps from the n = 7 state.What is the final state of the electron?

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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Correct Answer
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Correct Answer
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Correct Answer
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A UV laser emits light that has a wavelength 350 nm.If 1.23 * 10¹⁸ photons are emitted in 10 ns,what is the power of the laser?

Correct Answer
verified

Correct Answer
verified

He⁺ is a helium atom with one electron missing.Treating this like a hydrogen atom,what is the first excited state of this atom?

Correct Answer
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Correct Answer
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Correct Answer
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What is the shortest wavelength photon that can be emitted by singly ionized helium (He⁺) ?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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