A graph is drawn between the displacement and time taken for the oscillations of a simple pendulum is 2s. The length of the penddulum is _______ m ( if g = 10 `s^(-2) and pi^(2) =10`)

Options

A. 2
B. 1
C. 0.5
D. 0.25

Answer

B

Explanation

As the time period of oscillation is (T) = 2 s
`T=2pisqrt(l/g)`
`T^(2)=4pi^(2)l/g`
`l=(gT^(2))/(4pi^(2))=(10xx4)/(4xx10)=1m`