The first resonance length in a closed pipe is 20 cm then second resonance occurs at
Correct answer: A. 60 cm
- A. 60 cm
- B. 40 cm
- C. 120 cm
- D. 80 cm
Explanation
From figure, the length of 2nd resonance position is 3 times of the length of 1st resonance position so the correct answer is 150cm
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