A) exhibits interference. B) exhibits diffraction. C) has energy associated with it that is spread out continuously in space and time. D) obeys the laws of conservation of energy and momentum in collisions. E) is described by none of the above. A) exhibits interference. B) exhibits diffraction. C) has energy associated with it that is spread out continuously in space and time. D) obeys the laws of conservation of energy and momentum in collisions. E) is described by none of the above.

Use the following equation statement to answer the next four questions. The normalized wave functions for the infinite square-well potential are $\Psi$S1U1B1nS1U1B0 = (2/L)S1U1P11/2S1S1P0 sin(n $\pi$x/L) You may find it useful to use $\theta$sinS1U1P12S1S1P0$\theta$d$\theta$= $\theta$S1U1P12S1S1P0/4 - ($\theta$ sin 2$\theta$/4 - (cos 2$\theta$/8 + C -The expectation value <x> for a particle in the ground state of an infinite square-well potential is

A) L B) 3L/4 C) L/2 D) L/4 E) L/8 A) L B) 3L/4 C) L/2 D) L/4 E) L/8

Exam 14: Wave Particle Duality and Quantum Physics

A gamma-ray photon of energy 800 keV scatters off an electron at an angle perpendicular to its original direction. It then scatters off a second electron such that this secondary scattered photon continues in the direction of the original photon. Calculate the energy difference between the initial and final photon.

(Multiple Choice)

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Question 101

Use the following figure for the next two questions. Apparatus for studying the photoelectric effect -The work function of the material being investigated is 3.5 * 10^-19 J. The battery is set at 1.5 V. What is the longest wavelength of light needed to produce an electric current from the cathode (C) to the anode (A)?

(Multiple Choice)

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Question 102

The pupil area of the human eye is ~ 110^-5 m². The minimum light intensity that the eye is sensitive to is ~ 1 10^-10 Wm^-2. How many photons per second of wavelength 550 nm does this correspond to?

(Multiple Choice)

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Question 103

Light falling on the surface of a metal such as cesium can liberate electrons from the metal. The kinetic energy of electrons emitted from a metal can be increased by

(Multiple Choice)

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Question 104

An electron is in a one-dimensional box of length 0.5 nm. The ground-state energy of this electron is

(Multiple Choice)

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Question 105

An electron in the hydrogen atom (ground-state energy = -13.6 eV) makes a transition from the n = 2 to the n = 4 energy level. Calculate the magnitude of the energy of the photon involved in this process and state whether the photon was absorbed or emitted.

(Multiple Choice)

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Question 106

An electron is in a one-dimensional box of length 0.5 nm. The energy of this electron in its first excited state is

(Multiple Choice)

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Question 107

The graph shows the uncertainty in measuring the position x and momentum p of a particle in four experiments. Region 1 has area h, region 2 has area 4h, region 3 has area 2h, and region 4 has area 3h. The region that correctly represents the uncertainty principle is

(Multiple Choice)

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Question 108

A classical particle

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Question 109

If the work function of thoriated tungsten is 4 *10^-19 J, the longest wavelength of light that will cause photoelectrons to be emitted is approximately

(Multiple Choice)

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Question 110

The wave function for sound waves is

(Multiple Choice)

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Question 111

The dissociation energy is the energy required to separate the two atoms in a diatomic molecule in their ground-state. If the dissociation energy of molecular oxygen is 7.2 eV, then calculate the maximum wavelength of light from the Sun that can break apart atmospheric O₂.

(Multiple Choice)

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Question 112

The Davisson and Germer experiment verified that

(Multiple Choice)

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Question 113

The graphs shows the maximum kinetic energy of electrons emitted from a metal as a function of the frequency of the incident light. The work function of the metal is

(Multiple Choice)

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Question 114

A particle is in the ground state of an infinite square-well potential. The probability of finding the particle in the region 0 < x < 3L/4 is

(Multiple Choice)

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Question 115

The wave function for a particle between x = -4 cm and 4 cm is given by where L = 8 cm. Outside this range, the wave function is equal to zero. The probability of finding the particle between x = -2 cm and 2 cm is

(Multiple Choice)

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Question 116

An electron in a hydrogen atom jumps from n = 5 to n = 2. The color of the photon given off is

(Multiple Choice)

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Question 117

Use the following equation statement to answer the next four questions. The normalized wave functions for the infinite square-well potential are $\Psi$ _n = (2/L)^1/2 sin(n $\pi$ x/L) You may find it useful to use $Use the following equation statement to answer the next four questions. The normalized wave functions for the infinite square-well potential are \Psi n = (2/L)1/2 sin(n \pi x/L) You may find it useful to use \theta sin2 \theta d \theta = \theta 2/4 - ( \theta sin 2 \theta /4 - (cos 2 \theta /8 + C -The expectation value <x> for a particle in the ground state of an infinite square-well potential is$ $\theta$ sin² $\theta$ d $\theta$ = $\theta$ ²/4 - ( $\theta$ sin 2 $\theta$ /4 - (cos 2 $\theta$ /8 + C -The expectation value <x> for a particle in the ground state of an infinite square-well potential is

(Multiple Choice)

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Question 118

Which of the following does not require the quantum theory of light for its explanation?

(Multiple Choice)

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Question 119

A proton is in a one-dimensional box of length ~ 2 * 10^-15 m (i.e., ~ size of a nucleus). What is the approximate ground-state energy in eV?

(Multiple Choice)

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Question 120

Showing 101 - 120 of 153

The pupil area of the human eye is ~ 110^-5 m². The minimum light intensity that the eye is sensitive to is ~ 1 10^-10 Wm^-2. How many photons per second of wavelength 550 nm does this correspond to?

Light falling on the surface of a metal such as cesium can liberate electrons from the metal. The kinetic energy of electrons emitted from a metal can be increased by

An electron is in a one-dimensional box of length 0.5 nm. The ground-state energy of this electron is

An electron in the hydrogen atom (ground-state energy = -13.6 eV) makes a transition from the n = 2 to the n = 4 energy level. Calculate the magnitude of the energy of the photon involved in this process and state whether the photon was absorbed or emitted.

An electron is in a one-dimensional box of length 0.5 nm. The energy of this electron in its first excited state is

The graph shows the uncertainty in measuring the position x and momentum p of a particle in four experiments. Region 1 has area h, region 2 has area 4h, region 3 has area 2h, and region 4 has area 3h. The region that correctly represents the uncertainty principle is

A classical particle

If the work function of thoriated tungsten is 4 *10^-19 J, the longest wavelength of light that will cause photoelectrons to be emitted is approximately

The wave function for sound waves is

The dissociation energy is the energy required to separate the two atoms in a diatomic molecule in their ground-state. If the dissociation energy of molecular oxygen is 7.2 eV, then calculate the maximum wavelength of light from the Sun that can break apart atmospheric O₂.

The Davisson and Germer experiment verified that

The graphs shows the maximum kinetic energy of electrons emitted from a metal as a function of the frequency of the incident light. The work function of the metal is

A particle is in the ground state of an infinite square-well potential. The probability of finding the particle in the region 0 < x < 3L/4 is

The wave function for a particle between x = -4 cm and 4 cm is given by where L = 8 cm. Outside this range, the wave function is equal to zero. The probability of finding the particle between x = -2 cm and 2 cm is

An electron in a hydrogen atom jumps from n = 5 to n = 2. The color of the photon given off is

Which of the following does not require the quantum theory of light for its explanation?

A proton is in a one-dimensional box of length ~ 2 * 10^-15 m (i.e., ~ size of a nucleus). What is the approximate ground-state energy in eV?

The Electric Field I: Discrete Charge Distributions

The Electric Field II: Continuous Charge Distributions

Electric Potential

Capacitance

Electric Current and Direct-Current Circuits

The Magnetic Field

Sources of the Magnetic Field

Magnetic Induction

Alternating-Current Circuits

Maxwells Equations and Electromagnetic Waves

Properties of Light

Optical Images

Interference and Diffraction

Applications of the Schrodinger Equation

Atoms

Molecules

Solids and the Theory of Conduction

Relativity

Nuclear Physics

Elementary Particles and the Beginning of the Universe

Filters

Exam 14: Wave Particle Duality and Quantum Physics

The pupil area of the human eye is ~ 1*10-5 m2. The minimum light intensity that the eye is sensitive to is ~ 1 *10-10 Wm-2. How many photons per second of wavelength 550 nm does this correspond to?

Light falling on the surface of a metal such as cesium can liberate electrons from the metal. The kinetic energy of electrons emitted from a metal can be increased by

An electron is in a one-dimensional box of length 0.5 nm. The ground-state energy of this electron is

An electron in the hydrogen atom (ground-state energy = -13.6 eV) makes a transition from the n = 2 to the n = 4 energy level. Calculate the magnitude of the energy of the photon involved in this process and state whether the photon was absorbed or emitted.

An electron is in a one-dimensional box of length 0.5 nm. The energy of this electron in its first excited state is

The graph shows the uncertainty in measuring the position x and momentum p of a particle in four experiments. Region 1 has area h, region 2 has area 4h, region 3 has area 2h, and region 4 has area 3h. The region that correctly represents the uncertainty principle is

A classical particle

If the work function of thoriated tungsten is 4 *10-19 J, the longest wavelength of light that will cause photoelectrons to be emitted is approximately

The wave function for sound waves is

The dissociation energy is the energy required to separate the two atoms in a diatomic molecule in their ground-state. If the dissociation energy of molecular oxygen is 7.2 eV, then calculate the maximum wavelength of light from the Sun that can break apart atmospheric O2.

The Davisson and Germer experiment verified that

The graphs shows the maximum kinetic energy of electrons emitted from a metal as a function of the frequency of the incident light. The work function of the metal is

A particle is in the ground state of an infinite square-well potential. The probability of finding the particle in the region 0 < x < 3L/4 is

The wave function for a particle between x = -4 cm and 4 cm is given by where L = 8 cm. Outside this range, the wave function is equal to zero. The probability of finding the particle between x = -2 cm and 2 cm is

An electron in a hydrogen atom jumps from n = 5 to n = 2. The color of the photon given off is

Which of the following does not require the quantum theory of light for its explanation?

A proton is in a one-dimensional box of length ~ 2 * 10-15 m (i.e., ~ size of a nucleus). What is the approximate ground-state energy in eV?

The Electric Field I: Discrete Charge Distributions

The Electric Field II: Continuous Charge Distributions

Electric Potential

Capacitance

Electric Current and Direct-Current Circuits

The Magnetic Field

Sources of the Magnetic Field

Magnetic Induction

Alternating-Current Circuits

Maxwells Equations and Electromagnetic Waves

Properties of Light

Optical Images

Interference and Diffraction

Applications of the Schrodinger Equation

Atoms

Molecules

Solids and the Theory of Conduction

Relativity

Nuclear Physics

Elementary Particles and the Beginning of the Universe

Filters

The pupil area of the human eye is ~ 110^-5 m². The minimum light intensity that the eye is sensitive to is ~ 1 10^-10 Wm^-2. How many photons per second of wavelength 550 nm does this correspond to?

If the work function of thoriated tungsten is 4 *10^-19 J, the longest wavelength of light that will cause photoelectrons to be emitted is approximately

The dissociation energy is the energy required to separate the two atoms in a diatomic molecule in their ground-state. If the dissociation energy of molecular oxygen is 7.2 eV, then calculate the maximum wavelength of light from the Sun that can break apart atmospheric O₂.

A proton is in a one-dimensional box of length ~ 2 * 10^-15 m (i.e., ~ size of a nucleus). What is the approximate ground-state energy in eV?