[geometricoptics]
virtualimagesarecalledvirtualbecause?
a.theyarelocatedusingvirtuallightrays
b.theyarelocatedusingparallellightrays
c.theyarelocatedusingnormallightrays
d.theyarelocatedusingreallightrays
Amirror___light.
a.reflects
b.none
c.aborbs
d.refracts
whichofthefollowingistrueforalllenses:
a.allreducedimagesareinverted
b.allmagnifiedimagesareinverted
c.allrealimagesareinverted
d.allvirtualimagesareinverted
whatwouldbetheangleofreflectioniftheangleofincidenceis25degree?
a.65
b.115
c.25
d.-25
whenyougetaposityvevaluefordistancetoimage,youknowtheimageis__.
a.virtual
b.upright
c.inverted
d.real
Thebottomoftheimageisalwayslocatedat___.
a.theprincipalasix
b.wheretwolightraysmeet
c.thefocalpoint
d.insidethelabrynth
Anobjectisplacedbetweenfand2fforadivergingmirrror.theimagewillbelocated___.
a.fartherthan2f.
b.betweenfand2f
c.betweenthelensandf.
d.thereisnoimage
theradiusofcurvatureis_____
a.insidethelens
b.thefocallength
c.twicethefocallength
d.halfthefocallength
allimagesformedbydiverginmirrorsare:
a.real,uprightandmagnified
b.virtual,uprightandreduced
c.real,invertedandreduced
d.virtual,invertedandmagnified
thefocallengthofadiverginmirroris12cm.anobjectisplaced5cmawayfromthelens.theimagewillbe:
a.largerandreal
b.smallerandreal
c.largerandvirtual
d.smallerandvirtual
alens___light
a.none
b.reflects
c.absorbs
d.refracts
onwhatsideofaconverginglensistheprincipalfocuslocated?
a.ontheoppositesideoftheobject
b.onthesamesideastheobject
c.ontopoft
