Define second’s pendulum.
Q.2 (viii) Define second’s pendulum.
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Answer: A second’s pendulum is a simple pendulum whose period is two seconds.
It takes one second to swing from one extreme to the other. Its length is \(l = \dfrac{gT^2}{4\pi^2} = \dfrac{g}{\pi^2}\), about 0.99 m at a place where \(g = 9.8\) m/s\(^2\).
Doubtly AI
· 27 Oct 2026
AI-verified · Oct 2026
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