Q.

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

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a

0.159 s

b

3.14 s

c

6.5 s

d

6.28 s

answer is D.

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Detailed Solution

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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