Question

Two soap bubbles of radii 2 x 10-m and 4 x 10-3 m coaleasce. If the surface tension of
liquid is 7 x 10-2 N/m, then the radius of curvature of the common surface will be
(a) 4 m
(b) 4 x 10-m
(c) 2x 103 m
(d) 6x 10 m​

Answer 1

Answer:

the answer is equals to 2 ×10³ m