anonymous
  • anonymous
Two plane mirrors are at right angle to each other. A man stands between them and combs his hair with his right hand. in how many of the image he will be seen using his right hand ? a-1 b-2 c-3 d-none of these
Physics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@ghazi
ghazi
  • ghazi
good question :)
anonymous
  • anonymous
yes our lecture gave us a lot of them and ask us to find answers and tell why to learn much :) and i have searched a lot my last way is here :D

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anonymous
  • anonymous
and i just got one law from u :)
ghazi
  • ghazi
see number of images formed = 3 by our last formula and from right hand there will be 2 not sure though
anonymous
  • anonymous
if t was one mirror then one image wii appear and i will be seen using my right hand r ight ?
ghazi
  • ghazi
no, if it would be one mirror we would have seen our left just stand in front of mirror and see
anonymous
  • anonymous
ok if that when we apply that on the mirros there i found two of them is inverted so right hand appears right ?
anonymous
  • anonymous
and one is just like the image in one mirror
anonymous
  • anonymous
can i explain it like that ?
anonymous
  • anonymous
can u draw it please
ghazi
  • ghazi
yes you can but in objective question i don't think you need to draw or explain
anonymous
  • anonymous
i knew we just didn't got the lesson yet that is all question the lecturer ask us to find and learn every possible information so i had to write explanation
anonymous
  • anonymous
|dw:1351705086170:dw| which one of them is right or both are wrong ?
ghazi
  • ghazi
|dw:1351705092375:dw| it will be just one image from right hand i am sure about that
anonymous
  • anonymous
your is better :)
ghazi
  • ghazi
the mirror in the left will show it from right , thanks :)
anonymous
  • anonymous
then this one image. and one on right mirror shows left hand. then where is the third iamge
ghazi
  • ghazi
the third image is at the intersection of mirror that will show from left
anonymous
  • anonymous
then it will appear like one on the right mirror ok ?
ghazi
  • ghazi
yes, so it will be one just one
anonymous
  • anonymous
@experimentX @ghazi ok i guess i get the idea so the last answer is....?
ghazi
  • ghazi
1
anonymous
  • anonymous
ok what is the name of the formula u told me ?
experimentX
  • experimentX
probably 2 ------------ since there will be 4 images ------------------------ 2 images = direct reflection = 180 turn 2 images = double reflection = 360 turn
ghazi
  • ghazi
it's used for finding the number of images \[\frac{ 360 }{ n }-1\] where n is the angle between two mirrors
anonymous
  • anonymous
@experimentX but that formula will give that 3 images appears ?
experimentX
  • experimentX
|dw:1351706800281:dw|
anonymous
  • anonymous
i don't say that u r wrong am just confused and i want to understand this one
experimentX
  • experimentX
well ... try imagining yourself. it's pretty late around here .. have to sleep.
anonymous
  • anonymous
i got 2 mirrors, already did that and found three pics and 1 of them shows right hand
anonymous
  • anonymous
@ghazi @experimentX thx for trying to help :)

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