A particle executes $S.H.M.$ with amplitude $'a'$ and time period $V$. The displacement of the particle when its speed is half of maximum speed is $\frac{\sqrt{ x } a }{2} .$ The value of $x$ is $\ldots \ldots \ldots$
  • A$1$
  • B$5$
  • C$2$
  • D$3$
JEE MAIN 2021, Medium
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