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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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