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Excess pressure inside a soap bubble (4S/R)

This type of question, asked 4 times: 6 Apr 2024, 8 Apr 2024, 9 Apr 2024, 3 Apr 2025. All 4 questions below, oldest first.

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  1. Question 1

    6 Apr 2024

    106
    Pressure inside a soap bubble is greater than the pressure outside by an amount: (given: R=R = Radius of bubble, S=S = Surface tension of bubble)

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  2. Question 2

    8 Apr 2024

    26
    A liquid column of height 0.04 cm0.04\text{ }cm balances excess pressure of soap bubble of certain radius. If density of liquid is 8×103 kg m−38 \times10^{3}\text{ }kg{\text{ }m}^{- 3} and surface tension of soap solution is 0.28Nm−10.28Nm^{- 1}, then diameter of the soap bubble is _____ cmcm. (if g=10 ms−2g= 10{\text{ }ms}^{- 2} )

  3. Question 3

    9 Apr 2024

    99
    The excess pressure inside a soap bubble is thrice the excess pressure inside a second soap bubble. The ratio between the volume of the first and the second bubble is :

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  4. Question 4

    3 Apr 2025

    97
    The excess pressure inside a soap bubble AA in air is half the excess pressure inside another soap bubble B in air. If the volume of the bubble A is nn times the volume of the bubble B , then, the value of nn is ____\_\_\_\_.