A pendulum is executing simple harmonic motion and its maximum kinetic energy is $K_1$. If the length of the pendulum is doubled and it performs simple harmonic motion with the same amplitude as in the first case, its maximum kinetic energy is $K_2$ then
  • A${K_2} = 2{K_1}$
  • B${K_2} = \frac{{{K_1}}}{2}$
  • C${K_2} = \frac{{{K_1}}}{4}$
  • D${K_2} = {K_1}$
JEE MAIN 2019, Medium
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