JEE Main 202522 JanuaryMorning Shift

Exam: JEE Main
Year: 2025
Date: 22 January
Shift: Morning Shift
Subject: Physics
Chapter: Mechanical Properties of Fluids

JEE Main 2025 · 22 January · Morning Shift · Physics · Mechanical Properties of Fluids

Two soap bubbles of radius 2 cm and 4 cm , respectively, are in...

Two soap bubbles of radius 2 cm and 4 cm , respectively, are in contact with each other. The radius of curvature of the common surface, in cm , is ______ .

Correct answer

Step-by-step solution

R=\frac{R_2 R_1}{R_2-R_1}=\frac{4 \times 2}{2}=4 \mathrm{~cm}

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