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Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.MiscellaneousEasy2 minPYQ_2022

PhysicsEasysingle choice

When a long spring of $4 cm$ is stretched by $1 cm$ , the potential energy stored in the spring is $U$ . If it is stretched by $4 cm$ , the potential energy stored in it is

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Answer:

Solution:

The potential energy $U$ relates to an extension $x$ via, $U = \frac{1}{2} K x^{2} ∴ \frac{U ^{'}}{U} = \frac{x ^{'2}}{x ^{2}} = \frac{4 ^{2}}{1 ^{2}} = 16$

Stream:MHT_CETSubject:PhysicsTopic:W.E.P.Subtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2022

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