Question 1

Which of these statements is\are  true ?
I. As wavelength increases frequency decreases.
II. As energy increases frequency decreases.
III. As wavelength increases energy decreases.
IV. The product of wavelength and frequency is constant.

Accepted Answer

A)  I, III, and IV
B)  I and II
C)  I, II, and IV
D)  III and IV
E)  II, III, and IVF) None of the above
G) A) and E)

Question 2

What type of laser is the argon ion laser?

Accepted Answer

A)  Gas
B)  Dye
C)  Photon
D)  Semiconductor
E)  Solid-stateF) C) and E)
G) All of the above

Question 3

Visible light ranges in wavelength from 400 ____ − 780 ____. The missing units are:

Accepted Answer

A)  micrometers
B)  kilometers
C)  meters
D)  millimeters
E)  nanometersF) A) and D)
G) A) and C)

Question 4

Which of these is not an advantage of a laser 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 difficult to reach locations.F) A) and B)
G) B) and E)

Question 5

The key to obtaining an image, like in MRI, as opposed to a graph, like in NMR, is in creating:

Accepted Answer

A)  a high resonance frequency.
B)  a variable radio frequency.
C)  a constant magnetic field.
D)  a variable magnetic field.
E)  an electrical current.F) D) and E)
G) B) and C)

Question 6

The speed of light is 3.0 x 108 ____.

Accepted Answer

A)  meters per second
B)  miles per hour
C)  kilometers per second
D)  kilometers per hourE) A) and D)
F) B) and C)

Question 7

Which of these forms of electromagnetic radiation can contribute to an increased risk of cancer?
I. Gamma rays
II. Infrared
III. Ultraviolet
IV. Microwaves

Accepted Answer

A)  I only
B)  I and II
C)  II and III
D)  I and III
E)  I, II, and IIIF) C) and D)
G) None of the above

Question 8

Which of these scientists is credited with the discovery of x-rays?

Accepted Answer

A)  Bohr
B)  Hertz
C)  Heisenberg
D)  Roentgen
E)  EinsteinF) C) and D)
G) A) and B)

Question 9

The emission of light by the relaxation of excited electrons is known as ____.

Accepted Answer

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

Question 10

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

Accepted Answer

A)  Light Amplification by Stimulated Emission of Radiation
B)  Light Accelerated by Spectroscopic Emission of Radiation
C)  Light Accelerated by the Stimulated Emission of Radiation
D)  Light Amplification by Spectroscopy Electromagnetic Radiation
E)  Light Amplification by Spectroscopy of Excited electromagnetic RadiationF) A) and B)
G) A) and C)

Question 11

Arrange these spectral regions in order of increasing energy  (infrared, microwaves, ultraviolet, visible) .

Accepted Answer

A)  microwaves 
B)  microwaves 
C)  ultraviolet 
D)  ultraviolet 
E)  infrared < microwaves < ultraviolet < visibleF) B) and E)
G) A) and E)

Question 12

Which of these is not an application of lasers?

Accepted Answer

A)  Compact discs
B)  Imaging tissues
C)  Supermarket scanners
D)  Surveying equipment
E)  Aiming devicesF) B) and D)
G) A) and E)

Question 13

Which category of laser utilizes organic substance  in a liquid solution?

Accepted Answer

A)  Gas
B)  Dye
C)  Photon
D)  Semiconductor
E)  Solid-stateF) A) and E)
G) D) and E)

Question 14

Which category of laser is usually the smallest?

Accepted Answer

A)  Gas
B)  Dye
C)  Photon
D)  Semiconductor
E)  Solid-stateF) B) and D)
G) A) and D)

Question 15

Which of these processes is\are responsible for the breaking of bonds within a molecule?
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 IIIF) A) and C)
G) None of the above

Question 16

The processes by which an excited electron returns to its ground state with the emission of energy is known as ____.

Accepted Answer

A)  photodecomposition
B)  electronic relaxation
C)  spectroscopy
D)  electronic degradation
E)  microwave radiationF) A) and B)
G) C) and D)

Question 17

Which of these is not a characteristic of light?

Accepted Answer

A)  Wavelength
B)  Frequency
C)  Energy
D)  Amplitude
E)  All of these are characteristics of light.F) D) and E)
G) C) and E)

Question 18

Which of these is an application of lasers?

Accepted Answer

A)  Compact discs
B)  Surgery
C)  Supermarket scanners
D)  Surveying equipment
E)  All of theseF) A) and C)
G) All of the above

Question 19

Which of these is not an application of gas lasers?

Accepted Answer

A)  destroying of tumors
B)  visual effects
C)  surveying
D)  cutting guide
E)  alignment toolF) C) and D)
G) B) and C)

Question 20

Which of these is not a medical application of lasers?

Accepted Answer

A)  removal of skin cancer
B)  reshaping of the cornea
C)  surgery
D)  removal of tumors using fiber optics
E)  All of these are applications.F) D) and E)
G) A) and B)

Exam 7: Light and Color

Which of these is not a medical application of lasers?

Correct AnswerverifiedShow Answer

Which of these is not a characteristic of light?

Correct AnswerverifiedShow Answer

Which of these statements is\are true ? I. As wavelength increases frequency decreases. II. As energy increases frequency decreases. III. As wavelength increases energy decreases. IV. The product of wavelength and frequency is constant.

Correct AnswerverifiedShow Answer

What type of laser is the argon ion laser?

Correct AnswerverifiedShow Answer

Which of these processes is\are responsible for the breaking of bonds within a molecule? I. Photodecomposition II. Fluorescence III. Emission of heat

Correct AnswerverifiedShow Answer

The speed of light is 3.0 x 108 ____.

Correct AnswerverifiedShow Answer

Which of these is not an application of lasers?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of these forms of electromagnetic radiation can contribute to an increased risk of cancer? I. Gamma rays II. Infrared III. Ultraviolet IV. Microwaves

Correct AnswerverifiedShow Answer

Which of these is an application of lasers?

Correct AnswerverifiedShow Answer

Which of these is not an application of gas lasers?

Correct AnswerverifiedShow Answer

Which category of laser is usually the smallest?

Correct AnswerverifiedShow Answer

The processes by which an excited electron returns to its ground state with the emission of energy is known as ____.

Correct AnswerverifiedShow Answer

The emission of light by the relaxation of excited electrons is known as ____.

Correct AnswerverifiedShow Answer

Which of these scientists is credited with the discovery of x-rays?

Correct AnswerverifiedShow Answer

The key to obtaining an image, like in MRI, as opposed to a graph, like in NMR, is in creating:

Correct AnswerverifiedShow Answer

Arrange these spectral regions in order of increasing energy (infrared, microwaves, ultraviolet, visible) .

Correct AnswerverifiedShow Answer

Visible light ranges in wavelength from 400 ____ − 780 ____. The missing units are:

Correct AnswerverifiedShow Answer

Which category of laser utilizes organic substance in a liquid solution?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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The speed of light is 3.0 x 10⁸ ____.

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Visible light ranges in wavelength from 400 − 780 . The missing units are:

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