Home
Class 11
PHYSICS
A soap bubble of radius (1)/( sqrt(pi) c...

A soap bubble of radius `(1)/( sqrt(pi)` cm is expanded to double its radius. If the surface tension is 30 dynes/cm, the work done is

A

700 ergs

B

720 ergs

C

800 ergs

D

360 ergs.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SURFACE TENSION

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE ( LEVEL-II LECTURE SHEET (ADVANCED)STRAIGHT OBJECTIVE TYPE QUESTIONS )|4 Videos

  • SURFACE TENSION

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE ( LEVEL-II LECTURE SHEET (ADVANCED) LINKED COMPREHENSION TYPE QUESTIONS)|2 Videos

  • SURFACE TENSION

    AAKASH SERIES|Exercise PRACTICE SHEET ( EXERCISE-III Miscellaneous LEVEL - II LINKED COMPREHENSION TYPE QUESTIONS)|6 Videos

  • SIMPLE HARMONIC MOTION

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II)(PRACTICE SHEET (ADVANCED)) (INTEGER TYPE QUESTIONS)|3 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|99 Videos

Similar Questions

Explore conceptually related problems

A soap bubble of radius R is surrounded by another soap bubble of radius 2R, as shown. Take surface tension = S.

A drop of radius 1 mm is sprayed into 1000 droplets of same size. If surface tension of the liquid is 40 dyne cm^(-1) , the amount of work done in the process is

The excess pressure inside a spherical soap bubble of radius 1 cm is balanced by a column of oil (Specific gravity = 0.8), 2 mm high, the surface tension of the bubble is

The excess pressure inside a spherical soap bubble of radius lcm is balanced by a column of oil (Sp.gr =0.8),2mm high. The surface tension of the bubble is :

A soap bubble of radius 1.0 cm is formed inside another soap bubble of radius 2.0 cm The radius of an another soap bubble which has the same pressure difference as that between the inside of the smallar and outside of large snap bubble, in metres is

A soap bubble of radius r is blown up to form a bubble of radius 2r under isothermal conditions . If T is the surface tension of soap solution , the energy spent in blowing

AAKASH SERIES-SURFACE TENSION-ADDITIONAL PRACTICE EXERCISE (LEVEL-I (MAIN)-STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. If surface tension of water is 0.07 N/m the weight of water supported ...

    Text Solution

    |

  2. A thin metal disc of radius ‘r floating on water surface, bends the su...

    Text Solution

    |

  3. A soap bubble of radius (1)/( sqrt(pi) cm is expanded to double its ra...

    Text Solution

    |

  4. Two parallel glass plates are dipped perpendicularly in a liquid of de...

    Text Solution

    |

  5. Two soap bubbles A and B are given. Radius of B is 50% more than radiu...

    Text Solution

    |

  6. A straight piece of wire 5 cm long is placed horizontally on the surfa...

    Text Solution

    |

  7. A drop of radius 1 mm is sprayed into 1000 droplets of same size. If s...

    Text Solution

    |

  8. A mercury drop of radius 1 cm is sprayed into 10^(6) drops of equal si...

    Text Solution

    |

  9. A long capillary tube of radius 0.2mm is placed vertically inside a be...

    Text Solution

    |

  10. Two capillary tubes of same material are dipped -vertically in the sam...

    Text Solution

    |

  11. A tube of 0.8 mm radius is dipped into a liquid with surface tension a...

    Text Solution

    |

  12. The length of one edge of a glass plate of thickness 0.2 cm is 9.8 cm....

    Text Solution

    |

  13. The area of the surface of water in a vessel is 40cm^2. It is transfer...

    Text Solution

    |

  14. The lower end of a capillary tube of radius r is placed vertically in ...

    Text Solution

    |

  15. When water rises in a capillary tube of radius r to a height h, its po...

    Text Solution

    |

  16. The lower end of a capillary tube of diameter 2.00mm is dipped 8.00cm ...

    Text Solution

    |