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Sonometer wire stretched by a bob that is then immersed in water: frequency change and density of the bob

This type of question, asked 4 times: 2 May 2023 S2, 9 May 2023 S1, 9 May 2023 S2, 17 Apr 2026 S2. All 4 questions below, oldest first.

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  1. Question 1

    2 May 2023 S2

    42
    A sonometer wire is stretched by hanging a metal bob. The fundamental frequency of vibration of wire is 'n1n_1'. When the bob is completely immersed in water, the frequency of vibration of wire becomes 'n2n_2'. The relative density of the metal of the bob is

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  2. Question 2

    9 May 2023 S1

    31
    A sonometer wire is stretched by hanging a metal bob, the fundamental frequency of the wire is n1n_1. When the bob is completely immersed in water, the frequency of vibration of wire becomes n2n_2. The relative density of the metal of the bob is

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  3. Question 3

    9 May 2023 S2

    45
    A sonometer wire is in unison with a tuning fork of frequency 'n' when it is stretched by a weight of specific gravity 'd'. When the weight is completely immersed in water, 'x' beats are produced per second, then

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  4. Question 4

    17 Apr 2026 S2

    121
    In a sonometer experiment, the fundamental frequency of vibration of wire is 'n1n_1' when wire is stretched by hanging a metal bob. If the bob is completely immersed in water, the frequency of vibration of wire becomes 'n2n_2'. The relative density of the metal of the bob is

    Tap an option to check your answer.