Question 1

Magnetic Resonance Imaging (MRI)is based on the spectroscopy of which of these substances ____.

Accepted Answer

A) hydrogen 
B) carbon 
C) oxygen 
D) electrons 
E) helium 
A) hydrogen 
B) carbon 
C) oxygen 
D) electrons 
E) helium A

Question 2

Which of these statements is not true concerning the nature of light?

Accepted Answer

A) Light has both particle and wave characteristics. 
B) Particles of light are collectively called photons. 
C) Light travels faster in space than it does on earth. 
D) The wave nature of light has both a magnetic and an electrical component. 
E) The wavelength of light is inversely proportional to the frequency of light. 
A) Light has both particle and wave characteristics. 
B) Particles of light are collectively called photons. 
C) Light travels faster in space than it does on earth. 
D) The wave nature of light has both a magnetic and an electrical component. 
E) The wavelength of light is inversely proportional to the frequency of light. C

Question 3

The rapid emission of light by an excited molecule is known as ____.

Accepted Answer

A) photodecomposition 
B) phosphorescence 
C) fluorescence 
D) spectroscopy 
E) Both B and C are correct. 
A) photodecomposition 
B) phosphorescence 
C) fluorescence 
D) spectroscopy 
E) Both B and C are correct. C

Question 4

Which of the following is true when comparing ultraviolet light to visible light?

Accepted Answer

A) Ultraviolet light has a longer wavelength than visible light. 
B) Ultraviolet light has a lower frequency than visible light. 
C) Ultraviolet light has a lower energy than visible light. 
D) All of the above are true. 
E) None of the above are true. 
A) Ultraviolet light has a longer wavelength than visible light. 
B) Ultraviolet light has a lower frequency than visible light. 
C) Ultraviolet light has a lower energy than visible light. 
D) All of the above are true. 
E) None of the above are true.

Question 5

Which category of laser is also called diode lasers?

Accepted Answer

A) Gas 
B) Dye 
C) Photon 
D) Semiconductor 
E) Solid-state 
A) Gas 
B) Dye 
C) Photon 
D) Semiconductor 
E) Solid-state

Question 6

Arrange these spectral regions in order of increasing wavelength (infrared, radio waves, ultraviolet, visible).

Accepted Answer

A) radio waves < infrared < visible < ultraviolet 
B) radio waves < visible < infrared < ultraviolet 
C) ultraviolet < infrared < visible < radio waves 
D) ultraviolet < visible < infrared < radio waves 
E) infrared < radio waves < ultraviolet < visible 
A) radio waves < infrared < visible < ultraviolet 
B) radio waves < visible < infrared < ultraviolet 
C) ultraviolet < infrared < visible < radio waves 
D) ultraviolet < visible < infrared < radio waves 
E) infrared < radio waves < ultraviolet < visible

Question 7

Which of these is not a form of spectroscopy?

Accepted Answer

A) NMR 
B) MRI 
C) photochemistry 
D) phosphorescence 
E) fluorescence 
A) NMR 
B) MRI 
C) photochemistry 
D) phosphorescence 
E) fluorescence

Question 8

Which of these statements best describes the difference between traditional spectroscopy and NMR?

Accepted Answer

A) Spectroscopy requires that the sample be in a magnetic field. 
B) NMR utilizes high energy electromagnetic radiation and spectroscopy does not. 
C) NMR utilizes the transitions of hydrogen nuclei while spectroscopy utilizes transitions of electrons. 
D) NMR and spectroscopy are essentially the same. 
E) Both B and C are correct. 
A) Spectroscopy requires that the sample be in a magnetic field. 
B) NMR utilizes high energy electromagnetic radiation and spectroscopy does not. 
C) NMR utilizes the transitions of hydrogen nuclei while spectroscopy utilizes transitions of electrons. 
D) NMR and spectroscopy are essentially the same. 
E) Both B and C are correct.

Question 9

Which of these is not a characteristic of laser light?

Accepted Answer

A) Light which is one color. 
B) Waves which are in phase. 
C) Light which is very intense. 
D) Light which does not spread much. 
E) Light which is a combination of wavelengths. 
A) Light which is one color. 
B) Waves which are in phase. 
C) Light which is very intense. 
D) Light which does not spread much. 
E) Light which is a combination of wavelengths.

Question 10

The slow emission of light by a glow in the dark toy or watch is best described as ____.

Accepted Answer

A) photodecomposition 
B) phosphorescence 
C) fluorescence 
D) spectroscopy 
E) Both B and C are correct. 
A) photodecomposition 
B) phosphorescence 
C) fluorescence 
D) spectroscopy 
E) Both B and C are correct.

Question 11

Which of these colors of visible light has the lowest energy?

Accepted Answer

A) Red 
B) Orange 
C) Yellow 
D) Blue 
E) Violet 
A) Red 
B) Orange 
C) Yellow 
D) Blue 
E) Violet

Question 12

Arrange these spectral regions in order of increasing frequency  (x-rays, microwaves, ultraviolet, visible).

Accepted Answer

A) microwaves < visible < ultraviolet < x-rays 
B) microwaves < visible < x-rays < ultraviolet 
C) ultraviolet < x-rays < visible < microwaves 
D) ultraviolet < visible < x-rays < microwaves 
E) x-rays < microwaves < ultraviolet < visible 
A) microwaves < visible < ultraviolet < x-rays 
B) microwaves < visible < x-rays < ultraviolet 
C) ultraviolet < x-rays < visible < microwaves 
D) ultraviolet < visible < x-rays < microwaves 
E) x-rays < microwaves < ultraviolet < visible

Question 13

Which of the following is true when comparing infrared light to visible light?

Accepted Answer

A) Infrared light has a longer wavelength than visible light. 
B) Infrared light has a lower frequency than visible light. 
C) Infrared light has a lower energy than visible light. 
D) All of the above. 
E) None of the above. 
A) Infrared light has a longer wavelength than visible light. 
B) Infrared light has a lower frequency than visible light. 
C) Infrared light has a lower energy than visible light. 
D) All of the above. 
E) None of the above.

Question 14

Which of these is not a medical application of lasers?

Accepted Answer

A) Destruction of tumors 
B) Removal of birthmarks 
C) Destroying kidney stones 
D) Corrective eye surgery for near-sightedness 
E) All of these are applications. 
A) Destruction of tumors 
B) Removal of birthmarks 
C) Destroying kidney stones 
D) Corrective eye surgery for near-sightedness 
E) All of these are applications.

Question 15

Which of these processes can an excited molecule undergo?
I. Photodecomposition
II. Emission of light
III. Emission of heat

Accepted Answer

A) I only 
B) I and II 
C) II and III 
D) I and III 
E) I, II, and III 
A) I only 
B) I and II 
C) II and III 
D) I and III 
E) I, II, and III

Question 16

The speed of light ______________.

Accepted Answer

A) increases as frequency increases 
B) increases as wavelength increases 
C) is constant 
D) none of the above 
A) increases as frequency increases 
B) increases as wavelength increases 
C) is constant 
D) none of the above

Question 17

Which of these processes could occur during electronic relaxation?
I. Photodecomposition
II. Fluorescence
III. Emission of heat

Accepted Answer

A) I only 
B) I and II 
C) II and III 
D) I and III 
E) I, II, and III 
A) I only 
B) I and II 
C) II and III 
D) I and III 
E) I, II, and III

Question 18

The substances responsible for the green color of leaves area class of compounds called:

Accepted Answer

A) chloroforms. 
B) chlorophylls. 
C) chlorofluorocarbons. 
D) carotenes. 
E) none of the above. 
A) chloroforms. 
B) chlorophylls. 
C) chlorofluorocarbons. 
D) carotenes. 
E) none of the above.

Question 19

A graph which shows the change in transition of a nucleus as a function of radio wave frequency is known as a(n)____.

Accepted Answer

A) resonance frequency 
B) absorption spectrum 
C) relaxation time 
D) emission spectrum 
E) resonance imaging 
A) resonance frequency 
B) absorption spectrum 
C) relaxation time 
D) emission spectrum 
E) resonance imaging

Question 20

Wavelength of light is:

Accepted Answer

A) proportional to frequency and energy. 
B) inversely proportional to frequency and energy. 
C) proportional to frequency and inversely proportional to energy. 
D) inversely proportional to frequency and proportional to energy. 
A) proportional to frequency and energy. 
B) inversely proportional to frequency and energy. 
C) proportional to frequency and inversely proportional to energy. 
D) inversely proportional to frequency and proportional to energy.

Magnetic Resonance Imaging (MRI)is based on the spectroscopy of which of these substances ____.

Which of these statements is not true concerning the nature of light?

The rapid emission of light by an excited molecule is known as ____.

Which of the following is true when comparing ultraviolet light to visible light?

Which category of laser is also called diode lasers?

Arrange these spectral regions in order of increasing wavelength (infrared, radio waves, ultraviolet, visible).

Which of these is not a form of spectroscopy?

Which of these statements best describes the difference between traditional spectroscopy and NMR?

Which of these is not a characteristic of laser light?

The slow emission of light by a glow in the dark toy or watch is best described as ____.

Which of these colors of visible light has the lowest energy?

Arrange these spectral regions in order of increasing frequency (x-rays, microwaves, ultraviolet, visible).

Which of the following is true when comparing infrared light to visible light?

Which of these is not a medical application of lasers?

Which of these processes can an excited molecule undergo? I. Photodecomposition II. Emission of light III. Emission of heat

The speed of light ______________.

Which of these processes could occur during electronic relaxation? I. Photodecomposition II. Fluorescence III. Emission of heat

The substances responsible for the green color of leaves area class of compounds called:

A graph which shows the change in transition of a nucleus as a function of radio wave frequency is known as a(n)____.

Wavelength of light is:

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

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Exam 7: Light and Color

Magnetic Resonance Imaging (MRI)is based on the spectroscopy of which of these substances ____.

Which of these statements is not true concerning the nature of light?

The rapid emission of light by an excited molecule is known as ____.

Which of the following is true when comparing ultraviolet light to visible light?

Which category of laser is also called diode lasers?

Arrange these spectral regions in order of increasing wavelength (infrared, radio waves, ultraviolet, visible).

Which of these is not a form of spectroscopy?

Which of these statements best describes the difference between traditional spectroscopy and NMR?

Which of these is not a characteristic of laser light?

The slow emission of light by a glow in the dark toy or watch is best described as ____.

Which of these colors of visible light has the lowest energy?

Arrange these spectral regions in order of increasing frequency (x-rays, microwaves, ultraviolet, visible).

Which of the following is true when comparing infrared light to visible light?

Which of these is not a medical application of lasers?

Which of these processes can an excited molecule undergo? I. Photodecomposition II. Emission of light III. Emission of heat

The speed of light ______________.

Which of these processes could occur during electronic relaxation? I. Photodecomposition II. Fluorescence III. Emission of heat

The substances responsible for the green color of leaves area class of compounds called:

A graph which shows the change in transition of a nucleus as a function of radio wave frequency is known as a(n)____.

Wavelength of light is:

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

Filters