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JEE Main 20246 AprilEvening Shift
Exam
JEE Main
Year
2024
Date
6 April
Shift
Evening Shift
Subject
Physics
Chapter
Mechanical Properties of Fluids

JEE Main 2024 · 6 April · Evening Shift · Physics · Mechanical Properties of Fluids

Pressure inside a soap bubble is greater than the pressure outside...

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

Options

  1. A2SR\frac{2 S}{R}
  2. B4RS\frac{4 R}{S}
  3. CSR\frac{S}{R}
  4. D4 SR\frac{4 \mathrm{~S}}{\mathrm{R}}

Correct answer

D. 4 SR\frac{4 \mathrm{~S}}{\mathrm{R}}

Step-by-step solution

There are two liquid-air surfaces in bubble so ΔP=2(2 SR)=4 SR\Delta \mathrm{P}=2\left(\frac{2 \mathrm{~S}}{\mathrm{R}}\right)=\frac{4 \mathrm{~S}}{\mathrm{R}}
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