Home
Class 12
PHYSICS
A brass disc fits snugly in a hole in a ...

A brass disc fits snugly in a hole in a steel plate. Should you heat or cool this system to losen the disc from the hole ? given that `alpha _b gt alpha _Fe`.

A

First heated in cooled

B

First cooled then heated

C

Is heated

D

Is cooled

Text Solution

Verified by Experts

The correct Answer is:
D
Coefficient of linear expansion of brass is greater than of steel `1`.
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE -02|82 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE -03|11 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise SOME WORKED OUT EXAMPLES|84 Videos

  • CURRENT ELECTRICITY

    ALLEN|Exercise All Questions|427 Videos

  • GRAVITATION

    ALLEN|Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

A brass disc fits snugly in a hole in a steel plate. Shou,d you heat or cool tyhe system to losen the disc from the hole ? given that alpha _b gt alpha _Fe .

The brass disc fits singly in a hole in a steel plate. To loose the disk from hole

A brass dise fits into a hole in an iron plate. To remove the disc.

Statement-1: A brass disc is just fitted in a hole in a steel plate. The system mst be cooled to loosen the disc from the hole Statement-2: The coefficient of linear expansion for brass is greater than the coefficient of linear expansion for steel.

A Brass stopper snugly fits in the hole of steel plate.To remove the stopper easily, the system (A) should be heated (B) should be cooled (C) may be heated or cooled (D) can not be removed by heating or cooling

A 1.5 kg steel sphere will not fit through a circular hole in a 0.85 kg aluminium plate, because the radius of the sphere is 0.10% larger than the radius of the hole. If both the sphere and the plate are always kept at the same temperature, how much heat must be put into the two so the ball just passes through the hole ?

A linear accelerator consists of a hundred brass discs tightly fitted into a steel tube. At 40^(@)C the diameter of each disc is 10.02 cm. The system is assembled by cooling the discs in dry ice at -60^(@)C to enable them to slide into the close fitting tube. if the coefficient of linear expansion of brass is 2xx10^(-5).^(@)C^(-1) , the diameter of each disc in dry ice will be

A uniform disc of radius r is to be suspended through a small hole made in te disc. Find the minimum possible time period of the disc for small oscillations. What should be the distance of the hole from the centre for it to have minimum time period?

Determine the hight above the dashed line XX' attained by the water stream coming out through the hole is situtade at point B in the diagram given below. Given that h=10 m, L=2 m and alpha =30^(@) .

ALLEN-GEOMETRICAL OPTICS-EXERCISE -01
  1. In a vertical U-tube containing a luquid, the two arms are maintained ...

    Text Solution

    |

  2. A steel rod of length 1 m is heated from 25^@ "to" 75^@ C keeping its ...

    Text Solution

    |

  3. A brass disc fits snugly in a hole in a steel plate. Should you heat o...

    Text Solution

    |

  4. The variation of lengths of two moles rods A and B with change in temp...

    Text Solution

    |

  5. A steel tape placed around the earth at the equator when the temperatu...

    Text Solution

    |

  6. Bars of two different metals are bolted together , as shown in figure....

    Text Solution

    |

  7. A metal rod A of length l(0) expands by Deltal when its temperature is...

    Text Solution

    |

  8. The coefficient of linear expansion 'alpha' of a rod of length 2 m var...

    Text Solution

    |

  9. The coefficient of linear expansion 'alpha' of the material of a rod o...

    Text Solution

    |

  10. A clock with a metallic pendulum gains 6 seconds each day when the tem...

    Text Solution

    |

  11. A steel scale measures the length of a copper rod as l(0) when both ar...

    Text Solution

    |

  12. The coefficient of apparent expansion of a liquid when determined usin...

    Text Solution

    |

  13. Three rods of the same dimensions have thermal conductivities 3k , 2k ...

    Text Solution

    |

  14. A cup of tea cools from 80^(@)C to 60^(@)C in one minute. The ambient ...

    Text Solution

    |

  15. Ice starts forming in lake with water at 0^(@)C and when the atmospher...

    Text Solution

    |

  16. There is a small hole in a container. At what temperature should it be...

    Text Solution

    |

  17. A surface at temperature T(0)K receives power P by radiation from a sm...

    Text Solution

    |

  18. Two different rods A and B are kept as shown in figure . The variation...

    Text Solution

    |

  19. The area of cross-section of rod is given by A= A(0) (1+alphax) where ...

    Text Solution

    |

  20. Following graph shows the correct variation in intensity of heat radia...

    Text Solution

    |