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Physics - Elasticity Question with Solution | TestHub

PhysicsElasticityMiscellaneousMedium2 minQB

PhysicsMediumsingle choice

Figure (i): a fixed uniform string has force $T$ at its free end and another $T$ at its midpoint in the same direction. Figure (ii): an identical string is pulled by $T$ at both ends. Elongation ratio (i):(ii) is:

Options:

Answer:

Solution:

Half-string tensions in (i) are $2 T, T$ .

$Δ L_{i} = \frac{3 T L}{2 A Y}$ .

$Δ L_{ii} = \frac{T L}{A Y}$ .

Ratio $= 3 : 2$ .

Stream:JEESubject:PhysicsTopic:ElasticitySubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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