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PhysicsJEE Main 4 Apr 2026, Shift 1·Q22·Numerical·Easy–moderate

Mechanical Properties of Fluids · Surface tension

The surface tension of a soap solution is 3.5×10−23.5\times10^{-2} N/m. The work required to increase the radius of a soap bubble from 1 cm to 2 cm is α×10−6\alpha\times10^{-6} J. The value of α\alpha is . (π=22/7\pi = 22/7)

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