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UJJWAL JHA • over 2 years ago

Explain the physical meaning of poissons ratio


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KRISH YADAV

Materials show varying behaviors based on their Poisson's ratio. High Poisson's ratio materials (near 0.5) contract significantly sideways when stretched and expand when compressed, seen in substances like rubber. Low Poisson's ratio materials (near 0) undergo minimal width change during axial deformation, typical of metals and common engineering materials.

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Sarthak Shakya • about 3 years ago

निराशा

जीवनमा पलाएका ती नौलो आशाहरू,
पूरा हुन नपाई बिलाई सकेछ ।
याँहा को छर आफनो भनेर बोलाउ,
आफनो भनने सबै पराई भई सकेछ ।
हृदयमा फुलेका ती परितका फुल,
तिमरो माया नपाई आोईलि दिएछ ।
फकरिन लागेको आशाको दियो पनि
निराशाको भावमा खाग बनी खरानी भएछ ।।

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Arya Jha • asked a question

Using bisection method, find the root of the equation f(x)=x2 -6logx-3=0(2<=x<=3)'correct to 4 decimal places with an accuracy of 10 -2 .

Here, f(x)=x2 -6 logx-3=0

f(2)=4-6 log2-3=-0.806

f(3)=9-6 log3-3=3.1373

f(2).f(3)=-0.806*3.1373=-2.529422 which is negative.

Hence, the root lies between 2 and 3

c0 =(2+3)/2=2.5

f(2.5)=6.25-6 log 2.5-3=0.8623

Now

n
 a(-ve)
 b(+ve)
 cn
 f(cn)
0
 2
 3
 2.5
 0.8623
1
 2
 2.5
 2.25
 -0.050595
2
 2.25
 2.5
 2.375
 0.38664
3
 2.25
 2.375
 2.3125
 0.1631658
4
 2.25
 2.3125
 2.28125
 0.05506
5
 2.25
 2.28125
 2.265625
 0.001925

From the table,

f(2.265625)=0.001928<10-2

Therefore, the...

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Rakesh Yadav • over 2 years ago

Minds unite in Mattrab's domain,

Questions asked, wisdom to gain.

A community's bond, knowledge's reign,

Inquiry sparks, enlightenment's terrain.

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Ashok Shah • almost 2 years ago

Hey everyone, Today, I want to take a moment to revisit something special that happened recently. I was invited to my college where I completed my 11th and 12th to share my experiences from my +2...

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Atith Adhikari • asked a question

Can a physical quantity have direction and still be a scalar?

Yes, a physical quantity can have magnitude and direction but still be a scalar if it doesn't obey the vector addition. An example is Electric Current which has magnitude and a fixed direction, but it does not follow vector laws of addition.

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Atith Adhikari • over 2 years ago

We got this question in the examination yesterday,

"Shed some insight into the play's depiction of the chakari or trash practice; the profession is one of the most important aspects of a person's existence. You have ever noticed that some individuals do chakari or trash that is just done for a momentary benefit - be it private or public organizations, while others have faith in their knowledge, talent, and aptitudes and get name,...

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