Question
In an open organ pipe, third harmonic is 450Hz. What is the frequency of fifth harmonic?
✓
Answer
$\because \text{v}_3=3\text{v}_1$
$\text{v}_3=450\text{Hz}$
$\therefore 450=3\text{v}_1$
$\Rightarrow\text{v}_1=150\text{Hz}$
Fifth harmonic,
$\text{v}_5=5\text{v}_1$
$=5\times150$
$\text{v}_5=750\text{Hz}$
$\text{v}_3=450\text{Hz}$
$\therefore 450=3\text{v}_1$
$\Rightarrow\text{v}_1=150\text{Hz}$
Fifth harmonic,
$\text{v}_5=5\text{v}_1$
$=5\times150$
$\text{v}_5=750\text{Hz}$
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