Physics for IGCSE & O level - Forces And Pressure (Section 3 - No. 50)

What happens to a spring's behavior beyond the limit of proportionality?
It no longer obeys Hooke's Law.
It will return to its original shape if stretched.
It stretches more than the force would predict.
It becomes permanently deformed.

Explanation

Beyond the limit of proportionality, Hooke's law isn't followed and there will be permanent deformation.

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