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## AvengerVirus Group Title 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 one year ago one year ago

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1. AvengerVirus Group Title

@ghazi

2. ghazi Group Title

good question :)

3. AvengerVirus Group Title

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

4. AvengerVirus Group Title

and i just got one law from u :)

5. ghazi Group Title

see number of images formed = 3 by our last formula and from right hand there will be 2 not sure though

6. AvengerVirus Group Title

if t was one mirror then one image wii appear and i will be seen using my right hand r ight ?

7. ghazi Group Title

no, if it would be one mirror we would have seen our left just stand in front of mirror and see

8. AvengerVirus Group Title

ok if that when we apply that on the mirros there i found two of them is inverted so right hand appears right ?

9. AvengerVirus Group Title

and one is just like the image in one mirror

10. AvengerVirus Group Title

can i explain it like that ?

11. AvengerVirus Group Title

can u draw it please

12. ghazi Group Title

yes you can but in objective question i don't think you need to draw or explain

13. AvengerVirus Group Title

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

14. AvengerVirus Group Title

|dw:1351705086170:dw| which one of them is right or both are wrong ?

15. ghazi Group Title

|dw:1351705092375:dw| it will be just one image from right hand i am sure about that

16. AvengerVirus Group Title

your is better :)

17. ghazi Group Title

the mirror in the left will show it from right , thanks :)

18. AvengerVirus Group Title

then this one image. and one on right mirror shows left hand. then where is the third iamge

19. ghazi Group Title

the third image is at the intersection of mirror that will show from left

20. AvengerVirus Group Title

then it will appear like one on the right mirror ok ?

21. ghazi Group Title

yes, so it will be one just one

22. AvengerVirus Group Title

@experimentX @ghazi ok i guess i get the idea so the last answer is....?

23. ghazi Group Title

1

24. AvengerVirus Group Title

ok what is the name of the formula u told me ?

25. experimentX Group Title

probably 2 ------------ since there will be 4 images ------------------------ 2 images = direct reflection = 180 turn 2 images = double reflection = 360 turn

26. ghazi Group Title

it's used for finding the number of images $\frac{ 360 }{ n }-1$ where n is the angle between two mirrors

27. AvengerVirus Group Title

@experimentX but that formula will give that 3 images appears ?

28. experimentX Group Title

|dw:1351706800281:dw|

29. AvengerVirus Group Title

i don't say that u r wrong am just confused and i want to understand this one

30. experimentX Group Title

well ... try imagining yourself. it's pretty late around here .. have to sleep.

31. AvengerVirus Group Title

i got 2 mirrors, already did that and found three pics and 1 of them shows right hand

32. AvengerVirus Group Title

@ghazi @experimentX thx for trying to help :)