Question 1

In the process of fluorescence, part of the input energy immediately

Accepted Answer

A)  is emitted as higher-frequency light and the rest lower- frequency light. 
B)  becomes internal energy and the rest lower-frequency light. 
C)  cascades to excite other atoms in the material. 
D)  excites electrons to metastable states. 
E)  none of these 
A)  is emitted as higher-frequency light and the rest lower- frequency light. 
B)  becomes internal energy and the rest lower-frequency light. 
C)  cascades to excite other atoms in the material. 
D)  excites electrons to metastable states. 
E)  none of these

Question 2

As a solid is gradually heated, the first color to glow is

Accepted Answer

A)  blue. 
B)  white. 
C)  red. 
D)  yellow. 
A)  blue. 
B)  white. 
C)  red. 
D)  yellow.

Question 3

The Bohr model of the atom is akin to a

Accepted Answer

A)  miniature solar system. 
B)  central heavy ball with lighter balls connected by springs. 
C)  blob of plum pudding, where raisins represent atomic nuclei. 
D)  all of these 
A)  miniature solar system. 
B)  central heavy ball with lighter balls connected by springs. 
C)  blob of plum pudding, where raisins represent atomic nuclei. 
D)  all of these

Question 4

Two photons have the same wavelength. They also have the same

Accepted Answer

A)  frequency. 
B)  energy. 
C)  both of these 
D)  neither of these 
A)  frequency. 
B)  energy. 
C)  both of these 
D)  neither of these

Question 5

An excited hydrogen atom is capable of emitting radiation of

Accepted Answer

A)  a single frequency. 
B)  3 frequencies. 
C)  many more than 3 frequencies. 
A)  a single frequency. 
B)  3 frequencies. 
C)  many more than 3 frequencies.

Question 6

Isolated bells ring clear, while bells crammed in a box have a muffled ring. If the sound of isolated bells is analogous to light from a gas discharge tube, then sound from the box crammed with bells
Is analogous to light from

Accepted Answer

A)  a fluorescent lamp. 
B)  an incandescent lamp. 
C)  a laser. 
D)  a phosphorescent source. 
E)  none of these 
A)  a fluorescent lamp. 
B)  an incandescent lamp. 
C)  a laser. 
D)  a phosphorescent source. 
E)  none of these

Question 7

In the photoelectric effect, the greater the frequency of the illuminating light, the greater the

Accepted Answer

A)  number of ejected electrons. 
B)  maximum velocity of ejected electrons. 
C)  both of these 
D)  neither of these 
A)  number of ejected electrons. 
B)  maximum velocity of ejected electrons. 
C)  both of these 
D)  neither of these

Question 8

An excited atom decays to its ground state and emits a photon of green light. If instead the atom decays to an intermediate state, then the light emitted could be

Accepted Answer

A)  violet. 
B)  red. 
C)  blue. 
D)  any of these 
E)  none of these 
A)  violet. 
B)  red. 
C)  blue. 
D)  any of these 
E)  none of these

Question 9

A uranium atom is 238 times as massive as a hydrogen atom. The diameter of a uranium atom is the diameter of a hydrogen atom times about

Accepted Answer

A)  3. 
B)  30. 
C)  100. 
D)  238. 
E)  10. 
A)  3. 
B)  30. 
C)  100. 
D)  238. 
E)  10.

Question 10

The variety of colors seen in a burning log come from the variety of

Accepted Answer

A)  absorbing gases between the log and the viewer. 
B)  chemicals in the log. 
C)  electron transitions in various atoms. 
D)  temperatures. 
E)  multi-layered incandescent surfaces. 
A)  absorbing gases between the log and the viewer. 
B)  chemicals in the log. 
C)  electron transitions in various atoms. 
D)  temperatures. 
E)  multi-layered incandescent surfaces.

Question 11

Light behaves primarily as a particle when it

Accepted Answer

A)  travels from one place to another. 
B)  interacts with matter. 
A)  travels from one place to another. 
B)  interacts with matter.

Question 12

Compared to the wavelengths of visible light, the wavelengths of matter waves are relatively

Accepted Answer

A)  large. 
B)  small. 
A)  large. 
B)  small.

Question 13

The greater proportion of energy immediately converted to heat rather than light occurs in

Accepted Answer

A)  a fluorescent lamp. 
B)  an incandescent lamp. 
C)  both the same 
A)  a fluorescent lamp. 
B)  an incandescent lamp. 
C)  both the same

Question 14

Atoms of neon in a glass tube can be excited

Accepted Answer

A)  over and over again. 
B)  once per atom. 
A)  over and over again. 
B)  once per atom.

Question 15

Light from a laser is

Accepted Answer

A)  in phase. 
B)  monochromatic. 
C)  coherent. 
D)  all of these 
E)  none of these 
A)  in phase. 
B)  monochromatic. 
C)  coherent. 
D)  all of these 
E)  none of these

Question 16

The energy of a photon is related to

Accepted Answer

A)  the energy level difference though which it falls. 
B)  its frequency. 
C)  the energy given to the atom that emits it. 
D)  all of these 
E)  none of these 
A)  the energy level difference though which it falls. 
B)  its frequency. 
C)  the energy given to the atom that emits it. 
D)  all of these 
E)  none of these

Question 17

Physics pioneers Balmer, Rydberg, and Ritz discovered in atomic spectra

Accepted Answer

A)  that all atoms are essentially the same size. 
B)  that electrons behave as standing waves. 
C)  a randomness that opened the door to the nature of probabilities in atomic reality. 
D)  mathematical order. 
E)  that electrons occupy well-defined shells about the atomic nucleus. 
A)  that all atoms are essentially the same size. 
B)  that electrons behave as standing waves. 
C)  a randomness that opened the door to the nature of probabilities in atomic reality. 
D)  mathematical order. 
E)  that electrons occupy well-defined shells about the atomic nucleus.

Question 18

Ultraviolet light is

Accepted Answer

A)  present everywhere. 
B)  more energetic than X-rays. 
C)  produced by crossed Polaroids. 
D)  electromagnetic energy. 
E)  none of these 
A)  present everywhere. 
B)  more energetic than X-rays. 
C)  produced by crossed Polaroids. 
D)  electromagnetic energy. 
E)  none of these

Question 19

The uncertainty principle applies not only to momentum and position, but also to energy and time. This statement is

Accepted Answer

A) True 
 B)False

Question 20

The correspondence principle applies to

Accepted Answer

A)  theories of submicroscopic phenomena. 
B)  theories of macroscopic phenomena. 
C)  all good theories. 
A)  theories of submicroscopic phenomena. 
B)  theories of macroscopic phenomena. 
C)  all good theories.

In the process of fluorescence, part of the input energy immediately

As a solid is gradually heated, the first color to glow is

The Bohr model of the atom is akin to a

Two photons have the same wavelength. They also have the same

An excited hydrogen atom is capable of emitting radiation of

Isolated bells ring clear, while bells crammed in a box have a muffled ring. If the sound of isolated bells is analogous to light from a gas discharge tube, then sound from the box crammed with bells Is analogous to light from

In the photoelectric effect, the greater the frequency of the illuminating light, the greater the

An excited atom decays to its ground state and emits a photon of green light. If instead the atom decays to an intermediate state, then the light emitted could be

A uranium atom is 238 times as massive as a hydrogen atom. The diameter of a uranium atom is the diameter of a hydrogen atom times about

The variety of colors seen in a burning log come from the variety of

Light behaves primarily as a particle when it

Compared to the wavelengths of visible light, the wavelengths of matter waves are relatively

The greater proportion of energy immediately converted to heat rather than light occurs in

Atoms of neon in a glass tube can be excited

Light from a laser is

The energy of a photon is related to

Physics pioneers Balmer, Rydberg, and Ritz discovered in atomic spectra

Ultraviolet light is

The uncertainty principle applies not only to momentum and position, but also to energy and time. This statement is

The correspondence principle applies to

About Science

Atoms

Equilibrium and Linear Motion

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Temperature, Heat, and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light Waves

Properties of Light

The Atomic Nucleus and Radioactivity

Physics of Rotation and Equilibrium

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Exam 15: Quantum Theory

In the process of fluorescence, part of the input energy immediately

As a solid is gradually heated, the first color to glow is

The Bohr model of the atom is akin to a

Two photons have the same wavelength. They also have the same

An excited hydrogen atom is capable of emitting radiation of

Isolated bells ring clear, while bells crammed in a box have a muffled ring. If the sound of isolated bells is analogous to light from a gas discharge tube, then sound from the box crammed with bells Is analogous to light from

In the photoelectric effect, the greater the frequency of the illuminating light, the greater the

An excited atom decays to its ground state and emits a photon of green light. If instead the atom decays to an intermediate state, then the light emitted could be

A uranium atom is 238 times as massive as a hydrogen atom. The diameter of a uranium atom is the diameter of a hydrogen atom times about

The variety of colors seen in a burning log come from the variety of

Light behaves primarily as a particle when it

Compared to the wavelengths of visible light, the wavelengths of matter waves are relatively

The greater proportion of energy immediately converted to heat rather than light occurs in

Atoms of neon in a glass tube can be excited

Light from a laser is

The energy of a photon is related to

Physics pioneers Balmer, Rydberg, and Ritz discovered in atomic spectra

Ultraviolet light is

The uncertainty principle applies not only to momentum and position, but also to energy and time. This statement is

The correspondence principle applies to

About Science

Atoms

Equilibrium and Linear Motion

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Temperature, Heat, and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light Waves

Properties of Light

The Atomic Nucleus and Radioactivity

Physics of Rotation and Equilibrium

Filters