Two liquid drops of radii 1 mm and 2 mm merge in vacuum isothermally. Radius of resulting drop is

Two soap bubbles of radii 1 mm and 2 mm merge isothermally . Then radius of the new bubble formed would be

Two soap bubbles of raddi 1mm and 2mm merge isothermally. Then radius of the new bubble formed would be

Two spherical soap bubbles of radii r_(1) and r_(2) in vacuum combine under isothermal conditions. The resulting bubbles has a radius equal to

Two spherical soap bubbles of radii a and b in vacuum coalesce under isothermal conditions. The resulting bubble has a radius given by

Two spherical soap bubbles of radii a and b in vacuum coalesce under isothermal condition. The resulting bubbles has a radius given by …..

Two spherical soap bubbles of radii a and b in vacuum coalesce under isothermal conditions. The resulting bubble has a radius given by

Two spherical soap bubbles of a radii 1 cm and 2 cm vacuum coalesce under isothermal conditions . The resultant bubble has a radius of