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Beats between a tuning fork and a sonometer wire at two slightly different lengths

This type of question, asked 7 times: 12 May 2024 S2, 13 May 2024 S2, 14 May 2024 S2, 19 Apr 2025 S2, 23 Apr 2025 S1, 25 Apr 2025 S2, 19 Apr 2026 S1. All 7 questions below, oldest first.

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  1. Question 1

    12 May 2024 S2

    42
    A tuning fork gives 3 beats with 50 cm length of sonometer wire. If the length of the wire is shortened by 1 cm, the number of beats is still the same. The frequency of the fork is

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  2. Question 2

    13 May 2024 S2

    27
    When two tuning forks are sounded together, 5 beats per second are heard. One of the forks is in unison with 0.97 m length of sonometer wire and the other is in unison with 0.96 m length of the same wire. The frequencies of the two tuning forks are

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  3. Question 3

    14 May 2024 S2

    8
    A sonometer wire 49 cm long is in unison with a tuning fork of frequency nn. If the length of the wire is decreased by 1 cm and it is vibrated with the same tuning fork, 6 beats are heard per second. The value of nn is

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  4. Question 4

    19 Apr 2025 S2

    48
    When two tuning forks are sounded together, 6 beats per second are heard. One of the fork is in unison with 0.70 m length of sonometer wire and another fork is in unison with 0.69 m length of the same sonometer wire. The frequencies of the two tuning forks are

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  5. Question 5

    23 Apr 2025 S1

    22
    Two tuning forks when sounded together produce 4 beats per second. One of the forks is in unison with 23 cm length of sonometer wire and other with 24 cm length of the same wire. The frequencies of the two tuning forks are

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  6. Question 6

    25 Apr 2025 S2

    44
    A tuning fork gives 5 beats per second with 40 cm length of sonometer wire. If the length of the wire is shortened by 1 cm , the number of beats is still the same. The frequency of the fork is

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  7. Question 7

    19 Apr 2026 S1

    120
    A tuning fork gives 55 beats per second with a 3333 cm length of sonometer wire. If the length of the wire is shortened by 11 cm, the number of beats is still the same. The frequency of the fork is

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