Question 1

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 tool

Question 2

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

Accepted Answer

A) micrometers 
B) kilometers 
C) meters 
D) millimeters 
E) nanometers

Question 3

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

Accepted Answer

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

Question 4

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 III

Question 5

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 radiation

Question 6

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 devices

Question 7

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 IV

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 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 Radiation

Question 9

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 III

Question 10

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.

Question 11

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.

Question 12

What type of laser is the argon ion laser?

Accepted Answer

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

Question 13

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

Accepted Answer

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

Question 14

Which of these is an application of lasers?

Accepted Answer

A) Compact discs 
B) Surgery 
C) Supermarket scanners 
D) Surveying equipment 
E) All of these

Question 15

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.

Question 16

Which category of laser is usually the smallest?

Accepted Answer

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

Question 17

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

Accepted Answer

A) microwaves < infrared < visible < ultraviolet 
B) microwaves < visible < infrared < ultraviolet 
C) ultraviolet < infrared < visible < microwaves 
D) ultraviolet < visible < infrared < microwaves 
E) infrared < microwaves < ultraviolet < visible

Question 18

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 hour

Question 19

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.

Question 20

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.

Exam 7: Light and Color

Which of these is not an application of gas lasers?

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

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

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

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

Which of these is not an application of lasers?

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.

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

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

Which of these is not a medical application of lasers?

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

What type of laser is the argon ion laser?

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

Which of these is an application of lasers?

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

Which category of laser is usually the smallest?

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

The speed of light is 3.0 x 10⁸ ____.

Which of these is not a characteristic of light?

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