1. $$\frac{1}{{2\pi }}\sqrt {\frac{l}{{\text{g}}}} $$
  2. $$\frac{1}{{2\pi }}\sqrt {\frac{{\text{g}}}{l}} $$
  3. $$2\pi \sqrt {\frac{l}{{\text{g}}}} $$
  4. None of these
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1 Answers

Answer: Option 3

Let'

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