Home
Class 11
PHYSICS
A soap film in formed on a frame of area...

A soap film in formed on a frame of area `4xx10^(-3)m^(2)`. If the area of the film in reduced to half, then the change in the potential energy of the film is (surface tension of soap solution`=40xx10^(-3)N//m)`

A

`32xx10^(-5)J`

B

`16xx10^(-5)J`

C

`8xx10^(-5)J`

D

`16xx10^(5)J`

Text Solution

Verified by Experts

The correct Answer is:
B
`PE_(1)=W_(1)=2TA`
`PE_(2)=W_(2)=2T((A)/(2))`. Find out `DeltaPE`
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 3|29 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Statement Type Questions|16 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise Level 1 (C.W)|54 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 film in on a rectangular wire of size 4 cm xx 4 cm. If the size of the film is changed to 5 cm xx 5 cm, then calculate the work done in this process. The surface tension of soap film is 6xx10^(-2) Nm^(-1)

A soap film is on a rectangular wire ring of size 5cm ** 4 cm . If the size of the film is changed to 5cm xx 5cm , then calculate the work done in this process. The surface tension of soap film is 5 xx 10^(-2) Nm^(-1) .

The work done in blowing a soap bubble of 10 cm radius is (Surface tension of the soap solution is 3/100 N/m)

What will be the work done in blowing a soap bubble of radius 1 cm to 2 cm ? (If surface tension of soap solution is 25 xx 10^(-3) N/m)

The work done in blowing a soap bubble from a radius of 6 cm to 9 cm if surface tension of soap solution is 25xx10^(-3) N//m , is

What is the potential energy of a soap film formed on a frame of area 5 xx 10^(-3) m^(2) ? The surface tension of soap solution is 30 xx 10^(-3) N/m

Surface area of a soap bubble is 1.3xx10^(-4) m^2 . The work done to doble the surface area will be ( Surface tension for soap solution = 3xx10^(-3) N//m )

NARAYNA-MECHANICAL PROPERTIES OF FLUIDS-Level 2 (C.W)
  1. Three horizontal capillary tubes of same radii and length L(1),L(2) an...

    Text Solution

    |

  2. One spherical ball of radius R, density of released in liquid of densi...

    Text Solution

    |

  3. When a solid ball of volume V is falling through a viscous liquid, a v...

    Text Solution

    |

  4. A metalic wire of diameter d is lying horizontally o the surface of wa...

    Text Solution

    |

  5. A liquid is filled into a semi eliiptical cross section with a as semi...

    Text Solution

    |

  6. A liquid drop of diameter D breaks up into 27 drops. Find the resultan...

    Text Solution

    |

  7. A film of water is formed between two straight parallel wires of lengt...

    Text Solution

    |

  8. A soap film in formed on a frame of area 4xx10^(-3)m^(2). If the area ...

    Text Solution

    |

  9. The work done is blowing a soap bubble of volume V is W. The work done...

    Text Solution

    |

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

    Text Solution

    |

  11. Four identical capillary tubes a,b,c and d are dipped in four beakers ...

    Text Solution

    |

  12. A vessel whose bottom has round holes with diameter of 1 mm is filled...

    Text Solution

    |

  13. Water rises to a height h(1) in a capillary tube in a stationary lift....

    Text Solution

    |

  14. The radii of the two columne is U-tube are r(1) and r(2)(gtr(1)). When...

    Text Solution

    |

  15. The potential energy of the liquid of surface tension T and density rh...

    Text Solution

    |

  16. A small air bubble of 0.1 mm diameter is formed just below the surface...

    Text Solution

    |

  17. A spherical soap bubble of radius 1 cm is formed inside another of rad...

    Text Solution

    |

  18. The depth of water at which air bubble of radius 0.4 mm remains in equ...

    Text Solution

    |

  19. Two separate air bubbles (radii 0.002 cm and 0.004) formed of the same...

    Text Solution

    |

  20. The excess pressure inside a spherical soap bubble of radius 1 cm is ...

    Text Solution

    |