Assertion : Strain causes the stress in an el | vedclass

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Question

(C) The $Assertion$ is correct. According to Hooke's Law,within the elastic limit,stress is directly proportional to strain $(Stress \propto Strain)$.

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If the Assertion is correct but Reason is incorrect.

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(C) The $Assertion$ is correct. According to Hooke's Law,within the elastic limit,stress is directly proportional to strain $(Stress \propto Strain)$. When an external force is applied to an elastic body,it undergoes deformation (strain),which in turn develops an internal restoring force per unit area (stress).The $Reason$ is incorrect. Rubber is considered one of the most elastic materials because it can return to its original shape after the removal of a deforming force. $A$ material is considered 'plastic' if it undergoes permanent deformation and does not return to its original shape,which is the opposite of the behavior of rubber.Therefore,the $Assertion$ is correct,but the $Reason$ is incorrect.

Column-$I$	Column-$II$
$(a)$ Stress is proportional to strain.	$(i)$ Elastic limit
$(b)$ When the load on the wire is removed, the body regains its original dimension.	$(ii)$ Limit of proportionality
	$(iii)$ Plastic deformation

$Assertion :$ Strain causes the stress in an elastic body.
$Reason :$ An elastic rubber is more plastic in nature.

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$Assertion :$ Strain causes the stress in an elastic body.$Reason :$ An elastic rubber is more plastic in nature.