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Waves and Sound — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsWaves and Sound1 Mark
MCQ
A second harmonic has to be generated in a string of length $l$ stretched between two rigid supports. The point where the string has to be plucked and touched are
  • ✓
    Plucked at $\frac{l}{4}$ and touch at $\frac{l}{2}$
  • B
    Plucked at $\frac{l}{4}$ and touch at $\frac{3 l}{4}$
  • C
    Plucked at $\frac{l}{2}$ and touched at $\frac{l}{4}$
  • D
    Plucked at $\frac{l}{2}$ and touched at $\frac{3 l}{4}$
✓

Answer

Correct option: A.
Plucked at $\frac{l}{4}$ and touch at $\frac{l}{2}$

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