AIIMS2010Physics-Fluid Mechanics
AIIMS 2010 Physics Surface Tension MCQ Question
Type: MCQ-numerical-Medium-Class 11
Two spherical soap bubbles of radii a and b in vacuum coalesce under isothermal conditions. The resulting bubbles has a radius given by
A
(a+b)/2
B
ab/(a+b)
C
√(a²+b²)
D
a + b
Correct Answer
Option C
Detailed Explanation
Since the bubbles coalesce in vacuum and there is no change in temperature, hence its surface energy does not change.
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