A particle performs simple harmonic motion with a period of $2$ second. The time taken by the particle to cover a displacement equal to half of its amplitude from the mean position is $\frac{1}{ a } s .$ The value of $'a'$ to the nearest integer is.........
A$6$
B$5$
C$4$
D$8$
JEE MAIN 2021, Medium
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A$6$
a $t =\frac{2}{12}=\frac{1}{6}$
$\therefore$ Correct answer $=6.00$
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