Home
Class 12
PHYSICS
Two spherical soap bubbles of radii r1 a...

Two spherical soap bubbles of radii `r_1` and `r_2` in vacuume coalesce under isothermal condition. The resulting bubble has radius `R` such that

A

`R=r_1+r_2`

B

`R=(r_1r_2)/(r_1+r_2)`

C

`R^2=r_1^2+r_2^2`

D

`R=(r_1+r_2)/2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SURFACE TENSION

    TARGET PUBLICATION|Exercise EVALUATION TEST|21 Videos

  • SURFACE TENSION

    TARGET PUBLICATION|Exercise CRITICAL THINKING|62 Videos

  • STATIONARY WAVES

    TARGET PUBLICATION|Exercise EVALUATION TEST|16 Videos

  • WAVE MOTION

    TARGET PUBLICATION|Exercise MCQ 7.1|61 Videos

Similar Questions

Explore conceptually related problems

Two spherical soap bubbles of radii r_1 and r_2 in vacuume collapse under isothermal condition. The resulting bubble has radius R such that

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

Two soap bubbles having radii 3 cm and 4 cm in vacuum, coalesce under isothermal conditions. The radius of the new bubble is

Two soap bubbles of radii 2 cm and 5 cm coalesce under isothermal condition in vaccum, to form a bigger bubble. Find the radius of new bubble.

Two soap bubbles, each of radius r, coaleses in vacuum under isotermal conditions to from a bigger bubble of radius R. Then R is equal to

A soap bubble of radius 6 cm and another bubble of 8 cm coalesce under isothermal xonditions in vacuum. The radius of the new bubble is

Two soap bubble of radii r_(1) and r_(2) combime to form a single bubble of radius r under isothermal conditions . If the external pressure is P, prove that surface tension of soap solution is given by S=(P(r^(3)-r_(1)^(3)-r_(2)^(3)))/(4(r_(1)^(2)+r_(2)^(2)-r^(2))) .

TARGET PUBLICATION-SURFACE TENSION -COMPETITIVE THINKING
  1. A metal wire of density rho floats on water surface horozontally. If i...

    Text Solution

    |

  2. Two drops of a liquid are merged to form a single drop . In this proce...

    Text Solution

    |

  3. Two spherical soap bubbles of radii r1 and r2 in vacuume coalesce unde...

    Text Solution

    |

  4. The potential energy of molecule on the surface of a liquid as compare...

    Text Solution

    |

  5. Energy needed in breaking a drop of radius R into n drops of radii r i...

    Text Solution

    |

  6. Molecules on the surface of the liquid have

    Text Solution

    |

  7. If T is the surface tension of soap solution, the amount of work done ...

    Text Solution

    |

  8. Two soap bubbles have radii in the ratio of 4:3 . What is the ratio o...

    Text Solution

    |

  9. 1000 droplets of water having 2 mm diameter each coalesce to form a s...

    Text Solution

    |

  10. Amount of energy required to blow a bubble of radius 5 cm (surface ten...

    Text Solution

    |

  11. Work done in blowing a soap bubble of diameter 2 cm , is (S.T =3xx10^(...

    Text Solution

    |

  12. The surface tension of soap solution is 0.035 N/m . The energy needed...

    Text Solution

    |

  13. A wooden stick 2m long is floating on the surface of water. The surfac...

    Text Solution

    |

  14. A rectangular film of liquid is extended from (4 cm xx 2 cm) to (5 cm ...

    Text Solution

    |

  15. A frame made of metalic wire enclosing a surface area A is covered wit...

    Text Solution

    |

  16. A liquid drop having surface energy E is spread into 512 droplets of s...

    Text Solution

    |

  17. A big water drop is formed by the combination of 'n' small water dr...

    Text Solution

    |

  18. 8000 identical water drops are combined to form a big drop then the ra...

    Text Solution

    |

  19. A water drop of radius 1 cm is broken into 1000 equal droplets. If the...

    Text Solution

    |

  20. Work done in increasing the size of a soap bubble from a radius of 3 c...

    Text Solution

    |