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Number of nodes and antinodes in a pipe closed at one end vibrating in a given overtone

The same question, asked 2 times: 22 Apr 2025 S2*, 17 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    22 Apr 2025 S2

    26
    In a pipe closed at one end, air column is vibrating in its second overtone. The column has

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  2. Question 2

    17 Apr 2026 S2

    123
    In a pipe closed at one end, air column is vibrating in the fourth overtone so the vibrating air column has 'xx' nodes and 'yy' antinodes. The values of xx and yy are respectively

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