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What is the length of a simple pendulum,...

What is the length of a simple pendulum, which ticks seconds ?

Text Solution

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`T= 2pi sqrt((L)/(g))`
`L = ( gT^(2))/( 4pi^(2))`
`= ( 9.8 xx 2^(2))/( 4 xx ( 3.14 )^(2))`
`= 1 m` ( As time period of a seconds pendulum (i.e., the pendulum which ticks seconds ) is 2s )
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