JEE Mains · Physics · STD 11 - 9.2 surface tension
The excess pressure inside a soap bubble A in air is half the excess pressure inside another soap bubble B in air. If the volume of the bubble A is \(n\) times the volume of the bubble \(B\), then, the value of \(n\) is ___.
- A 10
- B 8
- C 6
- D 7
Answer & Solution
Correct Answer
(B) 8
Step-by-step Solution
Detailed explanation
\begin{aligned} & \Delta \mathrm{P}=\frac{4 \mathrm{~T}}{\mathrm{R}} \\ & \frac{\mathrm{R}_{\mathrm{A}}}{\mathrm{R}_{\mathrm{B}}}=\frac{\Delta \mathrm{P}_{\mathrm{B}}}{\Delta \mathrm{P}_{\mathrm{A}}}=2 \\ &…
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