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Work done in splitting a water drop of radius R into 64 (or 8, 1000) droplets

The same question, asked 5 times: 9 May 2023 S2, 15 May 2023 S1*, 11 May 2024 S1*, 26 Apr 2025 S2, 13 Apr 2026 S1. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    9 May 2023 S2

    28
    The work done in splitting a water drop of radius R into 64 droplets is (T = Surface tension of water)

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  2. Question 2

    15 May 2023 S1

    5
    When a mercury drop of radius RR splits up into 1000 droplets of radius rr, the change in surface energy is (T=T = surface tension of mercury)

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  3. Question 3

    11 May 2024 S1

    15
    A spherical liquid drop of radius RR is divided into 8 equal droplets. If surface tension is S, then the work done in this process will be

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  4. Question 4

    26 Apr 2025 S2

    10
    The work done in splitting a water drop of radius RR into 64 droplets is ( T=T= surface tension of water)

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  5. Question 5

    13 Apr 2026 S1

    112
    The work done in splitting a water drop of radius 'R' into 64 droplets is (T is the surface tension of water)

    Tap an option to check your answer.