M3:Module3Exam -
RequiresRespondus
LockDownBrowser+Web
cam
Attempt Time Score
LATEST Attempt 1 18 minutes 100 out of 100 *
*Somequestionsnotyetgraded
Scoreforthisquiz
:10
0 outof10
0*
SubmitedAug2at10
:37am
to
Thisatempt
k18minutes.
Question1
5/5pts
Ananometeris
definedas:
A.10-3
B.10-6
C.1
0-9
D.1
0-12
B.
A.
C.
D.
Question2
10/10pts
,Resolutionandcontrastaretwocritical
factorsthatinfluenceyourabilitytose
e
an object.Explaineach.
YourAnswer:
Resolution:distancebetwe
e
n2objectswhereobjectscanbesee
nasseparate.Ifthe twoobjectsaretoo
closetoeachother,agreaterresulutionrequireme
ntwilberequired
toviewthe2objectsasseparate.
Contrast:differenceinlightabdorbanceb
etwe
e n2objects.Thelowerthecontrast
betwe
e
ntheobjectandthebackground,theharde
ritwilbetoviewtheobject.The
higherthecontrast,theeasieritwilbet
oviewtheobject.
Resolutionreferstothedistancebetwe
ntwoobjectsatwhichtheobjectsstil
canbese nasseparate.Po
rorlowresolutionmeanstwo(ormore)object
smay ap earasone.
Contrastisthedifferenceinlightabsorbancebetw
ntwoobjects.Po rcontrast
givesahighbackgroundandmakesthevisualizatio
nofmultipleobjectsdifficult.
Forinstance,tryingtoidentify2darkcoloredobj
ectsatnight(lowlight=low
contrast)versusthesame2objectsinthemid
leofasun yafterno n(bright
lightagainst2darkobjects=highcontrast).
Question3
3/3pts
Assumingafixedocular,identifytheparto
fthemicroscopeyouwouldadjustto
enhancethemagnificationofasample.
Irisdiaphragm
Objective
Onlytheoculars(eyepiece)andtheobjectivescontri
butetothemagnificationofthesample.
Sincetheeyepieceisfixed,onlytheobjectivescouldbe
altered.
Eyepi
, ece
Conde
nser
RequiresRespondus
LockDownBrowser+Web
cam
Attempt Time Score
LATEST Attempt 1 18 minutes 100 out of 100 *
*Somequestionsnotyetgraded
Scoreforthisquiz
:10
0 outof10
0*
SubmitedAug2at10
:37am
to
Thisatempt
k18minutes.
Question1
5/5pts
Ananometeris
definedas:
A.10-3
B.10-6
C.1
0-9
D.1
0-12
B.
A.
C.
D.
Question2
10/10pts
,Resolutionandcontrastaretwocritical
factorsthatinfluenceyourabilitytose
e
an object.Explaineach.
YourAnswer:
Resolution:distancebetwe
e
n2objectswhereobjectscanbesee
nasseparate.Ifthe twoobjectsaretoo
closetoeachother,agreaterresulutionrequireme
ntwilberequired
toviewthe2objectsasseparate.
Contrast:differenceinlightabdorbanceb
etwe
e n2objects.Thelowerthecontrast
betwe
e
ntheobjectandthebackground,theharde
ritwilbetoviewtheobject.The
higherthecontrast,theeasieritwilbet
oviewtheobject.
Resolutionreferstothedistancebetwe
ntwoobjectsatwhichtheobjectsstil
canbese nasseparate.Po
rorlowresolutionmeanstwo(ormore)object
smay ap earasone.
Contrastisthedifferenceinlightabsorbancebetw
ntwoobjects.Po rcontrast
givesahighbackgroundandmakesthevisualizatio
nofmultipleobjectsdifficult.
Forinstance,tryingtoidentify2darkcoloredobj
ectsatnight(lowlight=low
contrast)versusthesame2objectsinthemid
leofasun yafterno n(bright
lightagainst2darkobjects=highcontrast).
Question3
3/3pts
Assumingafixedocular,identifytheparto
fthemicroscopeyouwouldadjustto
enhancethemagnificationofasample.
Irisdiaphragm
Objective
Onlytheoculars(eyepiece)andtheobjectivescontri
butetothemagnificationofthesample.
Sincetheeyepieceisfixed,onlytheobjectivescouldbe
altered.
Eyepi
, ece
Conde
nser