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The length of a pendulum is halved. Its energy will beA. decreased to halfB. increased to 2 timesC. decreased to one fourthD. increased to 4 times

Answer» Correct Answer - B
`Eprop(1)/(l)`
`(E_(2))/(E_(1))=(l_(1))/(l_(2))=2`
`E_(2)=2E_(1)`


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