A pendulum is hung from the roof of a sufficiently high building and is moving freely to and fro like a simple harmonic oscillator. The acceleration of the bob of the pendulum is 20 m/s2 at a distance of 5 m from the mean position. The time period of oscillation is
2 s
s
2 s
1 s
Option 1)
2 s
This is incorrect
Option 2)
s
This is correct
Option 3)
2 s
This is incorrect
Option 4)
1 s
This is incorrect