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Manipal MET2011PhysicsThermodynamics

A soap bubble in vacuum has a radius of 3 cm and another soap bubble in vacuum has a radius of 4 cm . If the two bubbles coalesce under isothermal condition, then the radius of the new bubble is

Options

  1. A2.3 cm
  2. B4.5 cm
  3. C5 cm
  4. D7 cm

Correct answer

C. 5 cm

Step-by-step solution

r= r₁^2+r₂^2 = 9+16 = 25 =5 ~cm

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