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What is the increase in potential energy storage when the compression distance is doubled in a spring obeying Hooke’s law?(a) No increase(b) 100% increase(c) Cannot be determined(d) 4 timesI have been asked this question during an online exam.This key question is from The Potential Energy of a Spring topic in section Work, Energy and Power of Physics – Class 11 |
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Answer» CORRECT ANSWER is (d) 4 times To explain: PE = 1/2 x k x d^2 The ELASTIC potential energy stored is directly PROPORTIONAL to the square of the compression. Hence, a two-fold increase in compression will result in potential energy STORAGE to increase by four times. |
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