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PhysicsNLMMiscellaneousEasy2 minQB

PhysicsEasysingle choice

Three springs with force constants k, 2k, 4k, respectively are connected in series. The effective force constant of the spring will be

Answer:

Solution:

Springs in series: $\frac{1}{k _{e ff}} = \frac{1}{k} + \frac{1}{2 k} + \frac{1}{4 k} = \frac{4 + 2 + 1}{4 k} = \frac{7}{4 k}$ .

$k_{e ff} = \frac{4 k}{7}$ .

Stream:JEESubject:PhysicsTopic:NLMSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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