Question 1

What instrument can be used to view a single fiber found at a crime scene and identify its generic class?

Accepted Answer

A)  Infrared microspectrophotometer 
B)  Stereoscopic microscope 
C)  Polarizing microscope 
D)  Both A and C 
A)  Infrared microspectrophotometer 
B)  Stereoscopic microscope 
C)  Polarizing microscope 
D)  Both A and C D

Question 2

The microscope examination of a bullet requires:

Accepted Answer

A)  Transmitted light. 
B)  Reflected light. 
C)  Condensed light. 
D)  All of the above. 
A)  Transmitted light. 
B)  Reflected light. 
C)  Condensed light. 
D)  All of the above. B

Question 3

The size of the specimen area in view is known as the:

Accepted Answer

A)  Depth of field. 
B)  Field of view. 
C)  Stage size. 
D)  Objective. 
A)  Depth of field. 
B)  Field of view. 
C)  Stage size. 
D)  Objective. B

Question 4

Which microscope has the largest potential working distance?

Accepted Answer

A)  Stereoscopic 
B)  Comparison 
C)  Polarizing 
D)  Compound 
A)  Stereoscopic 
B)  Comparison 
C)  Polarizing 
D)  Compound

Question 5

Which microscope can be linked to an X-ray analyzer?

Accepted Answer

A)  SEM 
B)  Microspectrophotometer 
C)  Stereoscopic 
D)  Polarizing 
A)  SEM 
B)  Microspectrophotometer 
C)  Stereoscopic 
D)  Polarizing

Question 6

Light confined to a single plane of vibration is said to be ________.

Accepted Answer

The answer of Light confined to a single plane of...

Question 7

Which microscope plots an absorption spectrum of the item under examination?

Accepted Answer

A)  Polarizing 
B)  Comparison 
C)  Stereoscopic 
D)  Microspectrophotometer 
A)  Polarizing 
B)  Comparison 
C)  Stereoscopic 
D)  Microspectrophotometer

Question 8

The most important tool of the firearms examiner is the:

Accepted Answer

A)  Compound microscope. 
B)  Comparison microscope. 
C)  Stereoscopic microscope. 
D)  Polarizing microscope. 
A)  Compound microscope. 
B)  Comparison microscope. 
C)  Stereoscopic microscope. 
D)  Polarizing microscope.

Question 9

The condenser of a compound microscope is located:

Accepted Answer

A)  At the base. 
B)  Within the body tube. 
C)  Beneath the stage. 
D)  Between the coarse and fine adjustments. 
A)  At the base. 
B)  Within the body tube. 
C)  Beneath the stage. 
D)  Between the coarse and fine adjustments.

Question 10

________ aperature measures the ability of an objective lens to resolve details into separate images instead of one blurred image.

Accepted Answer

The answer of ________ aperature measures the ability of an...

Question 11

The image produced by an SEM is initially displayed on:

Accepted Answer

A)  An X-ray analyzer. 
B)  Photographic paper. 
C)  An X-ray film. 
D)  A cathode ray tube. 
A)  An X-ray analyzer. 
B)  Photographic paper. 
C)  An X-ray film. 
D)  A cathode ray tube.

Question 12

In order to examine an opaque object with a compound microscope,one must:

Accepted Answer

A)  Use transmitted illumination. 
B)  Light the object from beneath the stage. 
C)  Use reflected illumination. 
D)  Stain the object before viewing it. 
A)  Use transmitted illumination. 
B)  Light the object from beneath the stage. 
C)  Use reflected illumination. 
D)  Stain the object before viewing it.

Question 13

Crystals that are ________ produce two planes of polarized light,each perpendicular to the other.

Accepted Answer

A)  Amorphous 
B)  Solid 
C)  Birefringent 
D)  Colored 
A)  Amorphous 
B)  Solid 
C)  Birefringent 
D)  Colored

Question 14

Indicate what type of microscope should be used to analyze each of the following items of evidence:
a.fired bullets
b.a synthetic fiber
c.soil minerals
d.paint chips
e.a shed head hair

Accepted Answer

a.comparison microscope
b.pola

Question 15

Which of the following is false?

Accepted Answer

A)  The scanning electron microscope (SEM) produces an image by aiming a beam of electrons onto a specimen. 
B)  The major attraction of the SEM is its high magnification and depth of field. 
C)  The SEM produces an image that is stereoscopic in appearance. 
D)  Microwaves are generated when the electron beam of the SEM strikes a target. 
A)  The scanning electron microscope (SEM) produces an image by aiming a beam of electrons onto a specimen. 
B)  The major attraction of the SEM is its high magnification and depth of field. 
C)  The SEM produces an image that is stereoscopic in appearance. 
D)  Microwaves are generated when the electron beam of the SEM strikes a target.

Question 16

The pollen of entomophilous plants is dispersed by wind.

Accepted Answer

A) True 
 B)False

Question 17

Which microscope is best suited to the study of birefringent minerals and fibers?

Accepted Answer

A)  Stereoscopic 
B)  Microspectrophotometer 
C)  Polarizing 
D)  Comparison 
A)  Stereoscopic 
B)  Microspectrophotometer 
C)  Polarizing 
D)  Comparison

Question 18

Which microscope is most likely to be used as a tool for determining whether or not a suspect has recently fired a gun?

Accepted Answer

A)  comparison 
B)  Polarizing 
C)  SEM 
D)  Stereoscopic 
A)  comparison 
B)  Polarizing 
C)  SEM 
D)  Stereoscopic

Question 19

A compound microscope is equipped with two objective lenses (10x and 45x)and has a 10x ocular lens.The highest magnification attainable with this instrument is:

Accepted Answer

A)  65x 
B)  100x 
C)  650x 
D)  450x 
A)  65x 
B)  100x 
C)  650x 
D)  450x

Question 20

What happens to a light beam that passes through a polarizing crystal?
 What happens when plane-polarized light passes through a second polarizing crystal set perpendicular to the first crystal?

Accepted Answer

Answer (should include points such as):

What instrument can be used to view a single fiber found at a crime scene and identify its generic class?

The microscope examination of a bullet requires:

The size of the specimen area in view is known as the:

Which microscope has the largest potential working distance?

Which microscope can be linked to an X-ray analyzer?

Light confined to a single plane of vibration is said to be ________.

Which microscope plots an absorption spectrum of the item under examination?

The most important tool of the firearms examiner is the:

The condenser of a compound microscope is located:

________ aperature measures the ability of an objective lens to resolve details into separate images instead of one blurred image.

The image produced by an SEM is initially displayed on:

In order to examine an opaque object with a compound microscope,one must:

Crystals that are ________ produce two planes of polarized light,each perpendicular to the other.

Indicate what type of microscope should be used to analyze each of the following items of evidence: a.fired bullets b.a synthetic fiber c.soil minerals d.paint chips e.a shed head hair

Which of the following is false?

The pollen of entomophilous plants is dispersed by wind.

Which microscope is best suited to the study of birefringent minerals and fibers?

Which microscope is most likely to be used as a tool for determining whether or not a suspect has recently fired a gun?

A compound microscope is equipped with two objective lenses (10x and 45x)and has a 10x ocular lens.The highest magnification attainable with this instrument is:

What happens to a light beam that passes through a polarizing crystal? What happens when plane-polarized light passes through a second polarizing crystal set perpendicular to the first crystal?

Introduction

The Crime Scene

Physical Evidence

Crime Scene Reconstruction: Blood Stain Pattern Analysis

Death Investigation

Fingerprints

Forensic Biometrics

Firearms, tool Marks, and Other Impressions

Matter, light, and Glass Examination

Hairs and Fibers

Drugs

Forensic Toxicology

Metals, paint, and Soil

Forensic Serology

DNA: the Indispensable Forensic Science Tool

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Mobile Device Forensics

Filters

Exam 8: The Microscope

What instrument can be used to view a single fiber found at a crime scene and identify its generic class?

The microscope examination of a bullet requires:

The size of the specimen area in view is known as the:

Which microscope has the largest potential working distance?

Which microscope can be linked to an X-ray analyzer?

Light confined to a single plane of vibration is said to be ________.

Which microscope plots an absorption spectrum of the item under examination?

The most important tool of the firearms examiner is the:

The condenser of a compound microscope is located:

________ aperature measures the ability of an objective lens to resolve details into separate images instead of one blurred image.

The image produced by an SEM is initially displayed on:

In order to examine an opaque object with a compound microscope,one must:

Crystals that are ________ produce two planes of polarized light,each perpendicular to the other.

Indicate what type of microscope should be used to analyze each of the following items of evidence: a.fired bullets b.a synthetic fiber c.soil minerals d.paint chips e.a shed head hair

Which of the following is false?

The pollen of entomophilous plants is dispersed by wind.

Which microscope is best suited to the study of birefringent minerals and fibers?

Which microscope is most likely to be used as a tool for determining whether or not a suspect has recently fired a gun?

A compound microscope is equipped with two objective lenses (10x and 45x)and has a 10x ocular lens.The highest magnification attainable with this instrument is:

What happens to a light beam that passes through a polarizing crystal? What happens when plane-polarized light passes through a second polarizing crystal set perpendicular to the first crystal?

Introduction

The Crime Scene

Physical Evidence

Crime Scene Reconstruction: Blood Stain Pattern Analysis

Death Investigation

Fingerprints

Forensic Biometrics

Firearms, tool Marks, and Other Impressions

Matter, light, and Glass Examination

Hairs and Fibers

Drugs

Forensic Toxicology

Metals, paint, and Soil

Forensic Serology

DNA: the Indispensable Forensic Science Tool

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Mobile Device Forensics

Filters