A stretched string is vibrating in its $5^{th}$ harmonic as shown. Consider a particle $1(figure)$. At an instant this particle is at mean positions and is moving towards its negative extreme. Which of the following set of particles, are in same phase with particle $1$
A$2, 4, 7$
B$3, 5, 6$
C$5, 7, 8$
D$2, 4, 6$
Easy
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C$5, 7, 8$
c Between $2$ nodes all particle vibrate in same phase
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