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2019 MHT-CET PCM SET - 01 — MHT - CET STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMHT - CET2019 MHT-CET PCM SET - 011 Mark
MCQ
Two open pipes of different lengths and same diameter in which the air column vibrates with fundamental frequencies $'n_1\ ',$ and $'n_2\ '$ respectively. When both pipes are joined to form a single pipe, its fundamental frequency will be $.......$
  • A
    $\frac{ n _1+ n _2}{ n _1 n _2}$
  • B
    $\frac{ n _1 n _2}{2 n _2+ n _1}$
  • ✓
    $\frac{ n _1 n _2}{ n _1+ n _2}$
  • D
    $\frac{2 n _2+ n _1}{ n _1 n _2}$
✓

Answer

Correct option: C.
$\frac{ n _1 n _2}{ n _1+ n _2}$
$\frac{ n _1 n _2}{ n _1+ n _2}$

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