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![[Post New]](/templates/default/images/icon_minipost_new.gif) 18 Apr 2008 19:51:53 IST
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does nybody know wat is 'poisson ratio'? explain..........
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18 Apr 2008 20:01:28 IST
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sum1 plz rply.........
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18 Apr 2008 20:27:46 IST
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If a wire is stretched from ends, fractional change in transverse length or width = (poisson's ratio)x(fractional change in linear length)
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______________________________________________
Siddhant Shah
The trouble with doing something right the first time is that nobody appreciates how difficult it is.
You can't control the wind, but you can adjust your sails.
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18 Apr 2008 20:35:36 IST
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when u stretch a rubber cord.. see wat happens... the length increases but width decreases simultaneously... now how tht decrease and increase in length or width depends on material.. this is given by poisson's ratio.. poisson ratio = - lateral strain / longitudinal strain...
-ve sign indicates tht the two strains goes with opp. signs..
if u r increasing length the width will get shorter...and vice versa..
just a knowledge topic..no serious ques. frm this part has been asked in IIT..
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Diamonds r formed under greatest pressures..
so r the champs.
Kriteesh..
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18 Apr 2008 20:41:42 IST
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nope yaar we r askin related to maths...
its vit que
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FAILURE IS NOT FALLING IN LIFE BUT NOT RISING AGAIN AFTER FALLING!!!!!!
I LIKE WAVES NOT BECAUSE THEY RISE AND FALL..
BUT BECAUSE EVERYTIME THEY FALL THEY RISE AGAIN!!!!!!!
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18 Apr 2008 20:49:06 IST
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i hv posted it in algebra forum.......then hw can it be related 2 phy. in particular, i wz askin abt poisson variate............does nybody know??
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19 Apr 2008 09:21:54 IST
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Poissondistribution is a limitin case of binomial distribution...suppose X is a random variable.... P(X=k)=(  k)*e -k/k! where = is both the mean as well as the variance of X |
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19 Apr 2008 09:51:17 IST
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it is da ratio of lateral strain to longitudinal ( read normal ) strain
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altitude begets altitude. |
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