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14. waves and sound — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics14. waves and sound1 Mark
MCQ
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
    $3, 5, 6$
  • ✓
    $5, 7, 8$
  • D
    $2, 4, 6$
✓

Answer

Correct option: C.
$5, 7, 8$
c
Between $2$ nodes all particle vibrate in same phase

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