Question 1

Explain what types of information can be obtained from a spectral line.

Accepted Answer

The element which created it,

Question 2

The Great Nebula in Orion, M-42, is a low-density cloud of hot gas. Use Kirchhoff's laws todescribe its spectrum.

Accepted Answer

Kirchhoff's second law notes t

Question 3

Describe how Einstein used the photoelectric effect to support the particle theory of light andphotons.

Accepted Answer

He found that regardless of how intense

Question 4

Describe two ways light can be separated out into its component colors in detail forspectroscopic analysis.

Accepted Answer

Newton passed light through a prism, whe

Question 5

Spectral lines are often referred to as the stars' "fingerprints" because:

Accepted Answer

A) fingerprints also consist of individual lines that make a pattern. 
B) both are unique to their source. 
C) both can be easily categorized. 
D) both are characteristic of the individual that produced them. 
E) All of these are correct. 
A) fingerprints also consist of individual lines that make a pattern. 
B) both are unique to their source. 
C) both can be easily categorized. 
D) both are characteristic of the individual that produced them. 
E) All of these are correct.

Question 6

How can Kirchhoff's Laws be used to deduce something about the nature of the light source?

Accepted Answer

A continuous spectrum will peak at a cer

Question 7

Which of these is the classic continuous spectrum?

Accepted Answer

A) sunlight 
B) a rainbow 
C) a neon light 
D) a fluorescent light 
E) a glowing nebula, such as M-42 
A) sunlight 
B) a rainbow 
C) a neon light 
D) a fluorescent light 
E) a glowing nebula, such as M-42

Question 8

Einstein's Nobel prize was for his work on the Theories of Relativity.

Accepted Answer

A) True 
 B)False

Question 9

All Lyman emission lines are transitions from the excited state to ________ state.

Accepted Answer

The answer of All Lyman emission lines are transitions from...

Question 10

The classical model of the hydrogen atom that explains its spectral line structure is due to:

Accepted Answer

A) Kirchhoff. 
B) Bohr. 
C) Fraunhofer. 
D) Newton. 
E) Mendeleev. 
A) Kirchhoff. 
B) Bohr. 
C) Fraunhofer. 
D) Newton. 
E) Mendeleev.

Question 11

According to Kirchhoff's first law why do dense, hot bodies create the type of spectrum theydo?

Accepted Answer

The continuous spectrum is com

Question 12

In the atom, which particles give the element its identity (atomic number)?

Accepted Answer

A) positrons 
B) electrons 
C) protons 
D) neutrons 
E) neutrinos 
A) positrons 
B) electrons 
C) protons 
D) neutrons 
E) neutrinos

Question 13

The Balmer Beta absorption line is a result of a transition of an electron in a hydrogen atomfrom:

Accepted Answer

A) level 2 to level 3. 
B) level 2 to level 4. 
C) level 3 to level 2. 
D) level 4 to level 2. 
E) none of the above 
A) level 2 to level 3. 
B) level 2 to level 4. 
C) level 3 to level 2. 
D) level 4 to level 2. 
E) none of the above

Question 14

The splitting of spectral lines in the presence of strong magnetic fields is the:

Accepted Answer

A) Doppler effect. 
B) Second Law of Kirchhoff. 
C) Zeeman effect. 
D) photoelectric effect. 
E) polarization of sunlight. 
A) Doppler effect. 
B) Second Law of Kirchhoff. 
C) Zeeman effect. 
D) photoelectric effect. 
E) polarization of sunlight.

Question 15

How can the light reflected off a planet reveal information about its atmosphere, even thoughthe planet is not creating this light?

Accepted Answer

The light has to pass through the cool,

Question 16

Since the difference in energy between the different rotational states in a molecule is verysmall, many molecular lines can be observed with:

Accepted Answer

A) visible light spectrometers. 
B) radio or microwave telescopes. 
C) high energy observatories like Chandra, in orbit above our atmosphere. 
D) ultraviolet balloons flying above the ozone layer. 
E) infrared telescopes on mountaintops. 
A) visible light spectrometers. 
B) radio or microwave telescopes. 
C) high energy observatories like Chandra, in orbit above our atmosphere. 
D) ultraviolet balloons flying above the ozone layer. 
E) infrared telescopes on mountaintops.

Question 17

________ is the process of stripping electrons from their atoms.

Accepted Answer

The answer of ________ is the process of stripping electrons...

Question 18

If a source of light is approaching us at 3,000 km/sec, then all its waves are:

Accepted Answer

A) blueshifted by 1%. 
B) redshifted by 1%. 
C) not affected, as c is constant regardless of the direction of motion. 
D) blueshifted out of the visible spectrum into the ultraviolet. 
E) redshifted out of the visible into the infrared. 
A) blueshifted by 1%. 
B) redshifted by 1%. 
C) not affected, as c is constant regardless of the direction of motion. 
D) blueshifted out of the visible spectrum into the ultraviolet. 
E) redshifted out of the visible into the infrared.

Question 19

Emission lines of hydrogen that are found in the ultraviolet part of the electromagneticspectrum are formed by electrons transitioning from:

Accepted Answer

A) any level to level 2. 
B) level 2 to any level. 
C) any level to level 1. 
D) level 1 to any level. 
E) any level to level 3. 
A) any level to level 2. 
B) level 2 to any level. 
C) any level to level 1. 
D) level 1 to any level. 
E) any level to level 3.

Question 20

An emission spectrum can be used to identify a(n):

Accepted Answer

A) proton. 
B) electron. 
C) neutron. 
D) atom. 
E) neutrino. 
A) proton. 
B) electron. 
C) neutron. 
D) atom. 
E) neutrino.

Exam 4: Spectroscopy: the Inner Workings of Atoms

Explain what types of information can be obtained from a spectral line.

The Great Nebula in Orion, M-42, is a low-density cloud of hot gas. Use Kirchhoff's laws todescribe its spectrum.

Describe how Einstein used the photoelectric effect to support the particle theory of light andphotons.

Describe two ways light can be separated out into its component colors in detail forspectroscopic analysis.

Spectral lines are often referred to as the stars' "fingerprints" because:

How can Kirchhoff's Laws be used to deduce something about the nature of the light source?

Which of these is the classic continuous spectrum?

Einstein's Nobel prize was for his work on the Theories of Relativity.

All Lyman emission lines are transitions from the excited state to ________ state.

The classical model of the hydrogen atom that explains its spectral line structure is due to:

According to Kirchhoff's first law why do dense, hot bodies create the type of spectrum theydo?

In the atom, which particles give the element its identity (atomic number)?

The Balmer Beta absorption line is a result of a transition of an electron in a hydrogen atomfrom:

The splitting of spectral lines in the presence of strong magnetic fields is the:

How can the light reflected off a planet reveal information about its atmosphere, even thoughthe planet is not creating this light?

Since the difference in energy between the different rotational states in a molecule is verysmall, many molecular lines can be observed with:

________ is the process of stripping electrons from their atoms.

If a source of light is approaching us at 3,000 km/sec, then all its waves are:

Emission lines of hydrogen that are found in the ultraviolet part of the electromagneticspectrum are formed by electrons transitioning from:

An emission spectrum can be used to identify a(n):

Charting the Heavens: The Foundations of Astronomy

The Copernican Revolution: The Birth of Modern Science

Radiation: Information From the Cosmos

Telescopes: The Tools of Astronomy

The Solar System: Comparative Planetology and Formation Models

Earth: Our Home in Space

The Moon and Mercury: Scorched and Battered Worlds

Venus: Earths Sister Planet

Mars: a Near Miss for Life

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

Uranus and Neptune: The Outer Worlds of the Solar System

Solar System Debris: Keys to Our Origin

Exoplanets: Planetary Systems Beyond Our Own

The Sun: Our Parent Star

The Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Gas and Dust Among the Stars

Star Formation: a Traumatic Birth

Stellar Evolution: The Life and Death of a Star

Stellar Explosions: Novae, Supernovae, and the Formation of the Elements

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Galaxies: Building Blocks of the Universe

Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos

Cosmology: The Big Bang and the Fate of the Universe

The Early Universe: Toward the Beginning of Time

Life in the Universe: Are We Alone

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