Q47.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 ______ . and
What This Question Tests
This question tests the understanding of excess pressure in soap bubbles and how it determines the radius of curvature of the common film when two bubbles are in contact.
Concepts Tested
Formulas Used
ΔP = 4T/R
R_common = R₁R₂ / |R₂ - R₁|
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📋 Question Details
- Chapter
- Properties of Matter
- Topic
- Excess Pressure in Soap Bubbles
- Year
- 2025
- Shift
- 22 Jan Shift 1
- Q Number
- Q47
- Type
- Numerical
- NCERT Ref
- Class 11 Physics Ch 10: Properties of Matter
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