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Speed of sound from the beats between two pipes or two wavelengths

This type of question, asked 3 times: 28 Jun 2022, 27 Jan 2024, 3 Apr 2025. All 3 questions below, oldest first.

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  1. Question 1

    28 Jun 2022

    20
    The velocity of sound in a gas. in which two wavelengths 4.08 m4.08\text{ }m and 4.16 m4.16\text{ }m produce 40 beats in 12 s12\text{ }s, will be :

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  2. Question 2

    27 Jan 2024

    113
    A closed organ pipe 150 cm150\text{ }cm long gives 7 beats per second with an open organ pipe of length 350 cm, both vibrating in fundamental mode. The velocity of sound is ______ m/sm/s.

  3. Question 3

    3 Apr 2025

    77
    In the resonance experiment, two air columns (closed at one end) of 100 cm and 120 cm long, give 15 beats per second when each one is sounding in the respective fundamental modes. The velocity of sound in the air column is :

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