Home
Class 11
PHYSICS
If a soap bubble of radius 3 cm coalesce...

If a soap bubble of radius 3 cm coalesce with another soap bubble of radius 4 cm under isothermal conditions the radius of the redultant bubble formed is in cm

A

7

B

1

C

5

D

12

Text Solution

Verified by Experts

The correct Answer is:
C

`r=sqrt(r_(1)^(2)+r_(2)^(2))`
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 2 (C.W)|40 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 3|29 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise C.U.Q|117 Videos
  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

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

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 conditions then the radius of the new bubble is :

A soap bubble in vacuum has a radius of 3 cm ad 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

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

Two drops of soap equal radius r coalesce to form a single drop under isothermal conditions . The radius of such a drop would be

A soup bubble in vacume has a redius 3cm and another soup bubble in vacume has radius 4cm If two bubble coulese under isothermal condition , then the radius of the new bubble will be

A soap bubble of radius r si blown up to form of bubble of radius 3r under isothermal conditions . What is the energy spent in doing so if the surface tension of soap solution is S.

A soap bubble of radius r is placed on another bubble of radius 2r . The radius of the surface common to both the bubbles is

NARAYNA-MECHANICAL PROPERTIES OF FLUIDS-Level 1 (C.W)
  1. A ring of inner and outer radii 8 and 9 cm is pulled out of water surf...

    Text Solution

    |

  2. In Fig(i) a thin film supports a small weight 3.5xx10^(-2)N The weight...

    Text Solution

    |

  3. Work of 6.0xx10^(-4)N joule is required to the done in increasing the ...

    Text Solution

    |

  4. The work done in increasing the radius of a soap bubble from 4 cm to 5...

    Text Solution

    |

  5. A mercury drop of radius 1 cm is sprayed into 10^(6) drops of equil s...

    Text Solution

    |

  6. 8000 identical water drops combine together to form a big drop. Then t...

    Text Solution

    |

  7. When two capillary tubes A and B are immersed in water , the heights o...

    Text Solution

    |

  8. A capillary tube of radius 0.25 mm is dipped vertically in a liquid of...

    Text Solution

    |

  9. When a clean lengthy capillary tube is dipped vertically in a beaker c...

    Text Solution

    |

  10. Capillary tubes of diameters 1,1.5,2 mm are are dipped vertically in t...

    Text Solution

    |

  11. A capillary tube is taken from the Earth to the surface of the moon. T...

    Text Solution

    |

  12. When a capillary tube is lowerd into water the mass of the water raise...

    Text Solution

    |

  13. A vessel has a small hole at its bottom. If water can be poured into i...

    Text Solution

    |

  14. A 20 cm long capillary tube is dipped in water. The water rises up to ...

    Text Solution

    |

  15. When a cylindrical tube is dipped vertically into a liquid the angle o...

    Text Solution

    |

  16. Water rises in a straight capillary tube upto a height of 5 cm when he...

    Text Solution

    |

  17. Two liquid drops have their diameters as 1 mm and 2 mm. The ratio of e...

    Text Solution

    |

  18. Pressure inside two soap bubbles are 1.01 and 1.02 atmospheres. Ratio ...

    Text Solution

    |

  19. Excess pressure one soap bubble is four times that of other. Then the ...

    Text Solution

    |

  20. If a soap bubble of radius 3 cm coalesce with another soap bubble of r...

    Text Solution

    |