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JEE Main 2002 (AIEEE) · Spring Systems

Spring Systems question from JEE Main 2002 (AIEEE)

Q97JEE Main 2002 · AIEEEEasy

Spring Systems

If a spring has time period T,T, and is cut into nn equal parts, then the time period of each part will be

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Answer: (b)

  1. Each of nn equal parts has k′=nkk' = nk.
  2. T′=2πmnk=TnT' = 2\pi\sqrt{\frac{m}{nk}} = \frac{T}{\sqrt{n}}.
  3. So the answer is (b) T/nT/\sqrt{n}.
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