Explain Hooke's Law.

1.	Explain Hooke's Law.
Answer» <html><body><p></p>Solution :"For small <a href="https://interviewquestions.tuteehub.com/tag/deformations-947281" style="font-weight:bold;" target="_blank" title="Click to know more about DEFORMATIONS">DEFORMATIONS</a> the stress and strain are <a href="https://interviewquestions.tuteehub.com/tag/proportional-1170279" style="font-weight:bold;" target="_blank" title="Click to know more about PROPORTIONAL">PROPORTIONAL</a> to each other". This is known as Hooke.s law.<br/>stress `prop` `therefore` strain stress `= kxx` strain <br/> where k is the proportionality constant and is known as modulus of elasticity. <br/> Hooke.s law is an empirical law and it is <a href="https://interviewquestions.tuteehub.com/tag/valid-723164" style="font-weight:bold;" target="_blank" title="Click to know more about VALID">VALID</a> for most materials.<br/>However, there are some materials which do not exhibit this linear relationship.<br/> SI unit of k is `Nm^(-<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>) or Pa`<br/>Dimensional formula is `[M^(<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>) L^(-1) T ^(-2)]`</body></html>

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