物理几何光学练习问题.

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

whenyougetapositivevaluefordistancetoimage,youknowtheimageis__.

a.virtual

b.upright

c.inverted

d.real

whenyougetanegativevalueforheightofobject(hi),theimageis___.

a.upright

b.inverted

c.real

d.virtual

Thebottomoftheimageisalwayslocatedat___.

a.theprincipalasix

b.wheretwolightraysmeet

c.thefocalpoint

d.insidethelabrynth

forabiconvexlensofafocallengthof5cm,theimageofanobjectplaced7cmfromthemirrorwillbe

a.virtual,invertedandmagnified

b.real,uprightandmagnified

c.virtual,uprightandreduced

d.real,invertedandmagnified

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.t