Two particles are in $SHM$ in a straight line. Amplitude $A$ and time period $T$ of both the particles are equal. At time $t=0,$ one particle is at displacement $y_1= +A$ and the other at $y_2= -A/2,$ and they are approaching towards each other. After what time they cross each other ?
A$T/3$
B$T/4$
C$5T/6$
D$T/6$
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D$T/6$
d Angle covered to meet $\theta=60^{\circ}=\frac{\pi}{3} \mathrm{rad}$
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