Question
Mon November 05, 2012 By: Madhuja
 

sir please explain why do we need the height of mirror half of the the height of the object to see full image?

Expert Reply
Tue November 06, 2012
 
in triangle GHE,object dist=image dist,and mirror is parallel to the person , so from BPT th,
EF=FH..................1
in triangle ECA, AD=DC
BD is parallel to person, so EB=BCfrom BPT theorem,....2
For triangle,CEH,
EB=BC
EF=FH
so FB is parallae to HC and FB=1/2 HC
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