Physics · 2025
JEE Main · 22 January 2025, Shift 1 · Q48
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 ____.
Two soap bubbles of radius $\displaystyle 2$ cm and $\displaystyle 4$ cm, respectively, are in contact with each other. The radius of curvature of the common surface, in cm, is $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
4
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.