Exam 32: Electromagnetic Waves Optics

Hydrogen atom: What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10^-19 J, m_h ≈ m_proton = 1.67 × 10^-27 kg)

(Multiple Choice)

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Question 21

Hydrogen atom: What is the energy of an incident photon that is just enough to excite a hydrogen atom from its ground state to its n = 4 state?

(Multiple Choice)

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Question 22

Quantum numbers: For each value of the principal quantum number n, what are the possible values of the electron spin quantum number m_s? (There may be more than one correct choice.)

(Multiple Choice)

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Question 23

Multielectron atoms: An electron initially in a 4p state decays to a lower energy state. Which energy state is forbidden?

(Multiple Choice)

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Question 24

Angular momentum: The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464ħ. Which of the following angles could NOT be the angle between the orbital angular momentum vector of the electron and an arbitrary z-direction?

(Multiple Choice)

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Question 25

Quantum numbers: In the ground state, the quantum numbers (n, l, m_l, m_s) for hydrogen are, respectively

(Multiple Choice)

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Question 26

Zeeman effect: An alkali metal atom is in the ground state. The orbital angular momentum equals zero and the spin angular momentum is entirely due to the single valence electron. A magnetic field is applied that splits the ground state energy level into two levels, 27 μeV apart. What is the strength of the applied magnetic field? (h = 6.626 × 10^-34 J ∙ s, Bohr magneton = μ_B = 9.27 × 10^-24 J/T, 1 eV = 1.60 × 10^-19 J)

(Multiple Choice)

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Question 27

Quantum numbers: An electron in a hydrogen atom is in the n = 7 shell. How many possible values of the orbital quantum number l could it have?

(Multiple Choice)

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Question 28

Multielectron atoms: The correct ground state electron configuration of boron, which has 5 electrons, is

(Multiple Choice)

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Question 29

Multielectron atoms: An atom has completely filled inner shells and a single valence electron in an excited p state. The filled inner shells have an orbital momentum equal to zero. What is the magnitude of the orbital angular momentum L of the atom?

(Multiple Choice)

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Question 30

Multielectron atoms: What is the wavelength of the K_α line for Mercury?

(Multiple Choice)

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Question 31

Multielectron atoms: The only INVALID electron state and shell designation among the following is

(Multiple Choice)

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Question 32

Zeeman effect: The energy of an electron in the p-level of an atom is changed in the presence of a magnetic field of magnitude 4.6 T. What is the difference between the largest and smallest possible energies? (Bohr magneton = μ_B = 9.27 × 10^-24 J/T)

(Short Answer)

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Question 33

Quantum numbers: If an electron has spin quantum number m_s = - , what is the possible value for the orbital quantum number l of the electron?

(Multiple Choice)

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Question 34

Lasers: A collection of atoms has 20% of the sample in a state above the ground state. If these emit coherent radiation, what is the wavelength of the laser light produced? (c = 3.00 × 10⁸ m/s, h = 6.626 × 10^-34 J ∙ s, 1 eV = 1.60 × 10^-19 J)

(Multiple Choice)

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Question 35

Lasers: Which of the following are characteristics of laser light? (There may be more than one correct choice.)

(Multiple Choice)

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Question 36

Hydrogen atom: The binding energy of the hydrogen atom in its ground state is -13.6 eV. What is the energy when it is in the n = 5 state?

(Multiple Choice)

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Question 37

Multielectron atoms: Which of the following electron transitions is forbidden?

(Multiple Choice)

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Question 38

Multielectron atoms: What is the correct electronic configuration for the ground state sodium atom, which has 11 electrons?

(Multiple Choice)

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Question 39

Multielectron atoms: The only VALID electron state and shell designation among the following is

(Multiple Choice)

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Question 40

Showing 21 - 40 of 53

Exam 32: Electromagnetic Waves Optics

Hydrogen atom: What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10-19 J, mh ≈ mproton = 1.67 × 10-27 kg)

Hydrogen atom: What is the energy of an incident photon that is just enough to excite a hydrogen atom from its ground state to its n = 4 state?

Quantum numbers: For each value of the principal quantum number n, what are the possible values of the electron spin quantum number ms? (There may be more than one correct choice.)

Multielectron atoms: An electron initially in a 4p state decays to a lower energy state. Which energy state is forbidden?

Angular momentum: The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464ħ. Which of the following angles could NOT be the angle between the orbital angular momentum vector of the electron and an arbitrary z-direction?

Quantum numbers: In the ground state, the quantum numbers (n, l, ml, ms) for hydrogen are, respectively

Quantum numbers: An electron in a hydrogen atom is in the n = 7 shell. How many possible values of the orbital quantum number l could it have?

Multielectron atoms: The correct ground state electron configuration of boron, which has 5 electrons, is

Multielectron atoms: An atom has completely filled inner shells and a single valence electron in an excited p state. The filled inner shells have an orbital momentum equal to zero. What is the magnitude of the orbital angular momentum L of the atom?

Multielectron atoms: What is the wavelength of the Kα line for Mercury?

Multielectron atoms: The only INVALID electron state and shell designation among the following is

Zeeman effect: The energy of an electron in the p-level of an atom is changed in the presence of a magnetic field of magnitude 4.6 T. What is the difference between the largest and smallest possible energies? (Bohr magneton = μB = 9.27 × 10-24 J/T)

Quantum numbers: If an electron has spin quantum number ms = - , what is the possible value for the orbital quantum number l of the electron?

Lasers: A collection of atoms has 20% of the sample in a state above the ground state. If these emit coherent radiation, what is the wavelength of the laser light produced? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ∙ s, 1 eV = 1.60 × 10-19 J)

Lasers: Which of the following are characteristics of laser light? (There may be more than one correct choice.)

Hydrogen atom: The binding energy of the hydrogen atom in its ground state is -13.6 eV. What is the energy when it is in the n = 5 state?

Multielectron atoms: Which of the following electron transitions is forbidden?

Multielectron atoms: What is the correct electronic configuration for the ground state sodium atom, which has 11 electrons?

Multielectron atoms: The only VALID electron state and shell designation among the following is

Motion Along a Straight Line

Motion in Two or Three Dimensions

Newtons Laws of Motion

Applying Newtons Laws

Work and Kinetic Energy

Potential Energy and Energy Conservation

Momentum, Impulse, and Collisions

Rotation of Rigid Bodies

Dynamics of Rotational Motion

Equilibrium and Elasticity

Fluid Mechanics

Gravitation

Periodic Motion

Mechanical Waves

Sound and Hearing

Temperature and Heat

Thermal Properties of Matter

The First Law of Thermodynamics

The Second Law of Thermodynamics

Electric Charge and Electric Field

Gausss Law

Electric Potential

Capacitance and Dielectrics

Current, Resistance, and Electromotive Force

Direct-Current Circuits

Magnetic Field and Magnetic Forces

Sources of Magnetic Field

Electromagnetic Induction

Inductance

Alternating Current

The Nature and Propagation of Light

Geometric Optics

Interference

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Hydrogen atom: What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10^-19 J, m_h ≈ m_proton = 1.67 × 10^-27 kg)

Quantum numbers: For each value of the principal quantum number n, what are the possible values of the electron spin quantum number m_s? (There may be more than one correct choice.)

Quantum numbers: In the ground state, the quantum numbers (n, l, m_l, m_s) for hydrogen are, respectively

Multielectron atoms: What is the wavelength of the K_α line for Mercury?

Zeeman effect: The energy of an electron in the p-level of an atom is changed in the presence of a magnetic field of magnitude 4.6 T. What is the difference between the largest and smallest possible energies? (Bohr magneton = μ_B = 9.27 × 10^-24 J/T)

Quantum numbers: If an electron has spin quantum number m_s = - , what is the possible value for the orbital quantum number l of the electron?

Lasers: A collection of atoms has 20% of the sample in a state above the ground state. If these emit coherent radiation, what is the wavelength of the laser light produced? (c = 3.00 × 10⁸ m/s, h = 6.626 × 10^-34 J ∙ s, 1 eV = 1.60 × 10^-19 J)