Question 1

Which of these is not an advantage of a laser beam over a scalpel?

Accepted Answer

A)  It can make precise cuts. 
B)  It is relatively inexpensive. 
C)  Its wavelength can be varied for desirable effects. 
D)  It causes minimum damage to surrounding tissues. 
E)  It can be delivered through a fiber optic cable to locations that are difficult to reach. 
A)  It can make precise cuts. 
B)  It is relatively inexpensive. 
C)  Its wavelength can be varied for desirable effects. 
D)  It causes minimum damage to surrounding tissues. 
E)  It can be delivered through a fiber optic cable to locations that are difficult to reach.

Question 2

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 3

Which of the following is/are true when comparing infrared light with visible light?

Accepted Answer

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

Question 4

Which of the following describes the slow emission of light that occurs in glow-in-the-dark toys?

Accepted Answer

A)  Photodecomposition 
B)  Phosphorescence 
C)  Fluorescence 
D)  Spectroscopy 
E)  Both phosphorescence and fluorescence 
A)  Photodecomposition 
B)  Phosphorescence 
C)  Fluorescence 
D)  Spectroscopy 
E)  Both phosphorescence and fluorescence

Question 5

What type of laser is a ruby laser?

Accepted Answer

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

Question 6

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 7

Identify the application(s) of semiconductor lasers.

Accepted Answer

A)  Scanners 
B)  Laser pointers 
C)  Laser scalpels 
D)  CD players 
E)  All of these 
A)  Scanners 
B)  Laser pointers 
C)  Laser scalpels 
D)  CD players 
E)  All of these

Question 8

Which of these is the correct expansion of the acronym LASER?

Accepted Answer

A)  Light Amplification by Stimulated Emission of Radiation 
B)  Light Acceleration by Spectroscopic Emission of Radiation 
C)  Light Acceleration by Stimulated Emission of Radiation 
D)  Light Amplification by Spectroscopic Electromagnetic Radiation 
E)  Light Amplification by Spectroscopic Excited Electromagnetic Radiation 
A)  Light Amplification by Stimulated Emission of Radiation 
B)  Light Acceleration by Spectroscopic Emission of Radiation 
C)  Light Acceleration by Stimulated Emission of Radiation 
D)  Light Amplification by Spectroscopic Electromagnetic Radiation 
E)  Light Amplification by Spectroscopic Excited Electromagnetic Radiation

Question 9

Which one of the following categories of lasers are also called diode lasers?

Accepted Answer

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

Question 10

If wave 1 has a wavelength that is half that of wave 2, which of the following is correct?

Accepted Answer

A)  The frequency and the energy of wave 1 are twice that of wave 2. 
B)  The frequency and the energy of wave 1 are half that of wave 2. 
C)  Wave 1 has half the frequency and twice the energy of wave 2. 
D)  Wave 1 has twice the frequency and half the energy of wave 2. 
E)  The question stem lacks enough information. 
A)  The frequency and the energy of wave 1 are twice that of wave 2. 
B)  The frequency and the energy of wave 1 are half that of wave 2. 
C)  Wave 1 has half the frequency and twice the energy of wave 2. 
D)  Wave 1 has twice the frequency and half the energy of wave 2. 
E)  The question stem lacks enough information.

Question 11

Which of these is not a characteristic of laser light?

Accepted Answer

A)  It contains only one wavelength. 
B)  It contains waves that are in phase. 
C)  It is very intense. 
D)  It does not spread much. 
E)  It is a combination of wavelengths. 
A)  It contains only one wavelength. 
B)  It contains waves that are in phase. 
C)  It is very intense. 
D)  It does not spread much. 
E)  It is a combination of wavelengths.

Question 12

Which of these is not an application of MRI?

Accepted Answer

A)  Detection of diseased tissue 
B)  Mapping of brain function 
C)  Detection of spinal cord lesions 
D)  Destruction of cancerous tumors 
E)  Detection of abnormalities of the central nervous system 
A)  Detection of diseased tissue 
B)  Mapping of brain function 
C)  Detection of spinal cord lesions 
D)  Destruction of cancerous tumors 
E)  Detection of abnormalities of the central nervous system

Question 13

Magnetic resonance imaging (MRI) is based on the spectroscopy of the nuclei of _____ atoms.

Accepted Answer

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

Question 14

Which of the following is/are true when comparing ultraviolet light with visible light?

Accepted Answer

A)  Ultraviolet light has a longer wavelength than that of visible light. 
B)  Ultraviolet light has a lower frequency than that of visible light. 
C)  Ultraviolet light has lower energy than that of visible light. 
D)  All of these 
E)  None of these 
A)  Ultraviolet light has a longer wavelength than that of visible light. 
B)  Ultraviolet light has a lower frequency than that of visible light. 
C)  Ultraviolet light has lower energy than that of visible light. 
D)  All of these 
E)  None of these

Question 15

Which of these scientists is credited with the discovery of radio waves?

Accepted Answer

A)  Bohr 
B)  Hertz 
C)  Heisenberg 
D)  Roentgen 
E)  Einstein 
A)  Bohr 
B)  Hertz 
C)  Heisenberg 
D)  Roentgen 
E)  Einstein

Question 16

Which of these is not a medical application of lasers?

Accepted Answer

A)  Removal of tumors 
B)  Removal of birthmarks 
C)  Removal of kidney stones 
D)  Corrective eye surgery for near-sightedness 
E)  Scanning different products in supermarkets 
A)  Removal of tumors 
B)  Removal of birthmarks 
C)  Removal of kidney stones 
D)  Corrective eye surgery for near-sightedness 
E)  Scanning different products in supermarkets

Question 17

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)  flavonoids 
A)  chloroforms 
B)  chlorophylls 
C)  chlorofluorocarbons 
D)  carotenes 
E)  flavonoids

Question 18

Which of these is an application of lasers?

Accepted Answer

A)  Lasers are integral parts of compact disc players. 
B)  Lasers are used in surgeries. 
C)  Lasers are integral parts of supermarket scanners. 
D)  Lasers are used in surveying equipment. 
E)  All of these 
A)  Lasers are integral parts of compact disc players. 
B)  Lasers are used in surgeries. 
C)  Lasers are integral parts of supermarket scanners. 
D)  Lasers are used in surveying equipment. 
E)  All of these

Question 19

Which of these is the primary difference in lasers?

Accepted Answer

A)  The color of the light 
B)  The nature of the lasing medium 
C)  The intensity of the light emitted 
D)  The wavelength of the light emitted 
E)  The speed at which the light emitted travels 
A)  The color of the light 
B)  The nature of the lasing medium 
C)  The intensity of the light emitted 
D)  The wavelength of the light emitted 
E)  The speed at which the light emitted travels

Question 20

How does LASER light differ from ordinary white light?
I. Laser light is hotter than white light.
II. Laser light's waves are in phase.
III. Laser light contains only one wavelength.
IV. Laser light is always red in color.

Accepted Answer

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

Which of these is not an advantage of a laser beam over a scalpel?

Arrange these spectral regions in order of increasing wavelength (Infrared, Radio waves, Ultraviolet, Visible).

Which of the following is/are true when comparing infrared light with visible light?

Which of the following describes the slow emission of light that occurs in glow-in-the-dark toys?

What type of laser is a ruby laser?

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

Identify the application(s) of semiconductor lasers.

Which of these is the correct expansion of the acronym LASER?

Which one of the following categories of lasers are also called diode lasers?

If wave 1 has a wavelength that is half that of wave 2, which of the following is correct?

Which of these is not a characteristic of laser light?

Which of these is not an application of MRI?

Magnetic resonance imaging (MRI) is based on the spectroscopy of the nuclei of _____ atoms.

Which of the following is/are true when comparing ultraviolet light with visible light?

Which of these scientists is credited with the discovery of radio waves?

Which of these is not a medical application of lasers?

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

Which of these is an application of lasers?

Which of these is the primary difference in lasers?

How does LASER light differ from ordinary white light? I. Laser light is hotter than white light. II. Laser light's waves are in phase. III. Laser light contains only one wavelength. IV. Laser light is always red in color.

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Exam 7: Light and Color

Which of these is not an advantage of a laser beam over a scalpel?

Arrange these spectral regions in order of increasing wavelength (Infrared, Radio waves, Ultraviolet, Visible).

Which of the following is/are true when comparing infrared light with visible light?

Which of the following describes the slow emission of light that occurs in glow-in-the-dark toys?

What type of laser is a ruby laser?

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

Identify the application(s) of semiconductor lasers.

Which of these is the correct expansion of the acronym LASER?

Which one of the following categories of lasers are also called diode lasers?

If wave 1 has a wavelength that is half that of wave 2, which of the following is correct?

Which of these is not a characteristic of laser light?

Which of these is not an application of MRI?

Magnetic resonance imaging (MRI) is based on the spectroscopy of the nuclei of _____ atoms.

Which of the following is/are true when comparing ultraviolet light with visible light?

Which of these scientists is credited with the discovery of radio waves?

Which of these is not a medical application of lasers?

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

Which of these is an application of lasers?

Which of these is the primary difference in lasers?

How does LASER light differ from ordinary white light? I. Laser light is hotter than white light. II. Laser light's waves are in phase. III. Laser light contains only one wavelength. IV. Laser light is always red in color.

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 Online Only

Filters