Question 1

The energy of an oscillating atom in a blackbody can be any value within a certain limited range.

Accepted Answer

A) True 
 B)False  False

Question 2

When the speed of an electron is increased the de Broglie wavelength is decreased.

Accepted Answer

A) True 
 B)False  True

Question 3

In the Bohr model of the hydrogen atom both the energy and orbital angular momentum of the electron are quantized.

Accepted Answer

A) True 
 B)False  True

Question 4

A quantum of electromagnetic radiation is a

Accepted Answer

A) wave function. 
B) photon. 
C) de Broglie wave. 
D) laser. 
E) hologram. 
A) wave function. 
B) photon. 
C) de Broglie wave. 
D) laser. 
E) hologram.

Question 5

The energy level diagram for hydrogen  
-The ionization energy of hydrogen is 13.6 eV.

Accepted Answer

A) True 
 B)False

Question 6

The person who expounded the uncertainty principle was

Accepted Answer

A) Max Planck. 
B) Albert Einstein. 
C) Neils Bohr. 
D) Erwin Schrödinger. 
E) Werner Heisenberg. 
A) Max Planck. 
B) Albert Einstein. 
C) Neils Bohr. 
D) Erwin Schrödinger. 
E) Werner Heisenberg.

Question 7

The chemical composition of stars can be determined from lines in their spectra.

Accepted Answer

A) True 
 B)False

Question 8

Electrons in atoms

Accepted Answer

A) orbit the nucleus in well-defined circular orbits. 
B) radiate electromagnetic energy continuously. 
C) act as if spread out in a "cloud" around the nucleus. 
D) behave as predicted by quantum mechanics. 
A) orbit the nucleus in well-defined circular orbits. 
B) radiate electromagnetic energy continuously. 
C) act as if spread out in a "cloud" around the nucleus. 
D) behave as predicted by quantum mechanics.

Question 9

According to the Pauli Exclusion Principle for n = 4,the occupation limit of electrons is:

Accepted Answer

The answer of According to the Pauli Exclusion Principle for...

Question 10

Find the energy of a photon whose frequency is 5 × 1012 Hz.

Accepted Answer

Question 11

The peak of the radiation curve of a blackbody moves upward toward higher intensity as its temperature __________.

Accepted Answer

The answer of The peak of the radiation curve of...

Question 12

In a laser

Accepted Answer

A) light is amplified by stimulated emission of radiation. 
B) the emitted light is monochromatic. 
C) the emitted light is coherent. 
D) there is a population inversion of electrons in atoms. 
E) all of the above 
A) light is amplified by stimulated emission of radiation. 
B) the emitted light is monochromatic. 
C) the emitted light is coherent. 
D) there is a population inversion of electrons in atoms. 
E) all of the above

Question 13

When the frequency of the light is increased in a photoelectric effect experiment,the energy of the emitted electrons increases.

Accepted Answer

A) True 
 B)False

Question 14

The photoelectric effect occurs when electrons are emitted when light strikes the surface of a metal.

Accepted Answer

A) True 
 B)False

Question 15

The characteristic peaks in an x-ray spectrum of an atom occur because of rapid deceleration of the bombarding electrons.

Accepted Answer

A) True 
 B)False

Question 16

If the speed of an electron increases,its de Broglie wavelength

Accepted Answer

A) increases. 
B) decreases. 
C) stays the same. 
D) may increase or decrease. 
A) increases. 
B) decreases. 
C) stays the same. 
D) may increase or decrease.

Question 17

​Match each item with the correct statement below.
-causes an electron to make a transition to a higher energy level

Accepted Answer

A) ​angular momentum 
B) ​de Broglie wavelength 
C) ​emission spectrum 
D) ​energy 
E) ​ground state
F)​hologram
G)​laser
H)​photoelectric effect
I)​photon
J)​photon absorption
K)​photon emission
L)​uncertainty principle
M)​wave function 
A) ​angular momentum 
B) ​de Broglie wavelength 
C) ​emission spectrum 
D) ​energy 
E) ​ground state
F)​hologram
G)​laser
H)​photoelectric effect
I)​photon
J)​photon absorption
K)​photon emission
L)​uncertainty principle
M)​wave function

Question 18

The lowest energy level in an atom is its

Accepted Answer

A) ionization level. 
B) emission level. 
C) absorption level. 
D) photon level. 
E) ground state. 
A) ionization level. 
B) emission level. 
C) absorption level. 
D) photon level. 
E) ground state.

Question 19

The peak of the radiation curve of a blackbody moves upward toward higher intensity as its temperature increases.

Accepted Answer

A) True 
 B)False

Question 20

Photocopiers make use of the photoelectric effect.

Accepted Answer

A) True 
 B)False

The energy of an oscillating atom in a blackbody can be any value within a certain limited range.

When the speed of an electron is increased the de Broglie wavelength is decreased.

In the Bohr model of the hydrogen atom both the energy and orbital angular momentum of the electron are quantized.

A quantum of electromagnetic radiation is a

The energy level diagram for hydrogen -The ionization energy of hydrogen is 13.6 eV.

The person who expounded the uncertainty principle was

The chemical composition of stars can be determined from lines in their spectra.

Electrons in atoms

According to the Pauli Exclusion Principle for n = 4,the occupation limit of electrons is:

Find the energy of a photon whose frequency is 5 × 10¹² Hz.

The peak of the radiation curve of a blackbody moves upward toward higher intensity as its temperature __________.

In a laser

When the frequency of the light is increased in a photoelectric effect experiment,the energy of the emitted electrons increases.

The photoelectric effect occurs when electrons are emitted when light strikes the surface of a metal.

The characteristic peaks in an x-ray spectrum of an atom occur because of rapid deceleration of the bombarding electrons.

If the speed of an electron increases,its de Broglie wavelength

Match each item with the correct statement below. -causes an electron to make a transition to a higher energy level

The lowest energy level in an atom is its

The peak of the radiation curve of a blackbody moves upward toward higher intensity as its temperature increases.

Photocopiers make use of the photoelectric effect.

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

Electromagnetism and Em Waves

Optics

Nuclear Physics

Special Relativity and Elementary Particles

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Exam 10: Atomic Physics

The energy of an oscillating atom in a blackbody can be any value within a certain limited range.

When the speed of an electron is increased the de Broglie wavelength is decreased.

In the Bohr model of the hydrogen atom both the energy and orbital angular momentum of the electron are quantized.

A quantum of electromagnetic radiation is a

The energy level diagram for hydrogen -The ionization energy of hydrogen is 13.6 eV.

The person who expounded the uncertainty principle was

The chemical composition of stars can be determined from lines in their spectra.

Electrons in atoms

According to the Pauli Exclusion Principle for n = 4,the occupation limit of electrons is:

Find the energy of a photon whose frequency is 5 × 1012 Hz.

The peak of the radiation curve of a blackbody moves upward toward higher intensity as its temperature __________.

In a laser

When the frequency of the light is increased in a photoelectric effect experiment,the energy of the emitted electrons increases.

The photoelectric effect occurs when electrons are emitted when light strikes the surface of a metal.

The characteristic peaks in an x-ray spectrum of an atom occur because of rapid deceleration of the bombarding electrons.

If the speed of an electron increases,its de Broglie wavelength

​Match each item with the correct statement below. -causes an electron to make a transition to a higher energy level

The lowest energy level in an atom is its

The peak of the radiation curve of a blackbody moves upward toward higher intensity as its temperature increases.

Photocopiers make use of the photoelectric effect.

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

Electromagnetism and Em Waves

Optics

Nuclear Physics

Special Relativity and Elementary Particles

Filters

Find the energy of a photon whose frequency is 5 × 10¹² Hz.

Match each item with the correct statement below. -causes an electron to make a transition to a higher energy level