MCQ
Third harmonic frequency in open argonpipe:
- AFirst overtone
- ✓Second overtone
- CThird overtone
- DBasic overtone
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(Note: Specific heat of the metal $=500 \,J / kg /{ }^{\circ} C$; Heat transfer coefficient from block to air $=50 \,W / m ^2 /{ }^{\circ} C$ )
