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Oscillations — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsOscillations2 Marks
Question
What is the length of a simple pendulum, which ticks seconds?
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Answer

$\text{T}=2\pi\sqrt{\frac{\text{l}}{\text{g}}}$

So, $\text{l}=\frac{\text{gT}^2}{4\pi^2}=\frac{9.8\times(2)^2}{4\times\frac{22}{7}\times\frac{22}{7}}=1\text{m}$

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