A simple pendulum has time period $T_1$. The point of suspension is now moved upward according to equation $y = k{t^2}$ where $k = 1\,m/se{c^2}$. If new time period is $T_2$ then ratio $\frac{{T_1^2}}{{T_2^2}}$ will be
  • A$2/3$
  • B$5/6$
  • C$6/5$
  • D$3/2$
IIT 2005, Medium
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