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Questions  

The time period of a simple pendulum of length 9.8 m is

a
0.159 s
b
3.14 s
c
6.5 s
d
6.28 s

detailed solution

Correct option is D

Time period, T=2πlgGiven, g=9.8 ms-2, l=9.8 m⇒  T=2π9.89.8=2π=2×3.14=6.28 s

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