Physics - Elasticity Question with Solution | TestHub
PhysicsElasticityMiscellaneousMedium2 minQB
PhysicsMediumassertion reason
Statement-1: Elastic forces can be conservative even beyond proportionality limit.
Statement-2: Materials can be stretched even beyond proportionality limit. (point till which Hooke's law is valid is called proportionality limit)
Options:
Answer:
B
Solution:
Between the proportionality limit and the elastic limit the body still returns to its original shape.
So the elastic force is still conservative there: Statement-1 is true.
Materials do stretch beyond the proportionality limit: Statement-2 is true.
Statement-2 only says stretching is possible. It does not say why the force is conservative, so it is not the explanation.
Stream:JEESubject:PhysicsTopic:ElasticitySubtopic:Miscellaneous
⏱ 2mℹ️ Source: QB
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