In the figure shown rod `AB` is light and rigid while rod `CD` is also rigid and hinged at midpoint `O` Rod can rotate without friction about `O`. The time period of small oscillation of rod `CD` is `T=2pisqrt(m/(nk))`. Where `m` is mass of rod `CD` and `k` is spring constant of each spring. The value of `n` is

Answer

5

Explanation

`(ml^(2))/12 alpha=-{(2ktheta)/2+(ktheta)/4}l^(2)impliesalpha=-((5k)/m)theta`