Home
Class 12
PHYSICS
A uniform solid brass sphere is rotating...

A uniform solid brass sphere is rotating with angular speed `omega_0` about a diameter. If its temperature is now increased by `100^@C`, what will be its new angular speed. (given`alpha_B=2.0xx10^-5per^@C`)

A

`1.1 omega_(0)`

B

`1.01 omega_(0)`

C

`0.996 omega_(0)`

D

`0.824 omega_(0)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • HEAT AND THERMAL EXPANSION

    PHYSICS GALAXY - ASHISH ARORA|Exercise ADVANCE MCQs WITH ONE OR MORE OPTIONIS CORRECT|24 Videos
  • HEAT AND THERMAL EXPANSION

    PHYSICS GALAXY - ASHISH ARORA|Exercise UNSOLVED NUMRICAL PROBLEMS FOR PREPARATION OF NSEP, INPhO & IPhO|82 Videos
  • HEAT AND THERMAL EXPANSION

    PHYSICS GALAXY - ASHISH ARORA|Exercise CONCEPTUAL MCQs SINGLE OPTION CORRECT|15 Videos
  • GEOMETRICAL OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems|107 Videos
  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSEP,INPhO&IPhO|66 Videos

Similar Questions

Explore conceptually related problems

A solid cylinder of mass M and radius R rotates about its axis with angular speed omega . Its rotational kinetic energy is

A metallic solid sphere is rotating about its diameter as axes of rotation. If the temperature is increased by 200^(@)C , the percentage increase in its moment of inertia is (Coefficient of linear expansion of the metal =10^(-5)//""^(@)C )

In previous problem, if initially the platform with the child is rotating with an angular speed omega_(1) . If child start walking along its periphery in opposite direction with speed u relative to platform, what will be the new angular speed ofthe platform.

A thin circular right of mass M and radius R is rotating about its axis with an angular speed omega_(0) two particles each of mass m are now attached at diametrically opposite points. Find new angular speed of the ring.

A rigid metallic sphere is spinning about its own axis in the absence of external torque.If the temperature is raised,its volume increases by "9%" .The change in its angular speed is

A solid sphere is rotating about a diameter at an angular velocity omega . If it cools so that its radius reduces to I//n of its original value, its angular velocity becomes

A solid sphere is rotating about its diameter.Due to increase in room temperature its volume increases by 0.5% .If no external torque acts the angular speed of the sphere will increase by nearly (1)/(3)% decrease by nearly (1)/(3)% increase by nearly (1)/(2)% decrease by nearly (2)/(3)%

To increase the length of brass rod by 2% its temperature should increase by (alpha = 0.00002 "^(@)C^(-1))

PHYSICS GALAXY - ASHISH ARORA-HEAT AND THERMAL EXPANSION-NUMERICAL MCQs SINGLE OPTIONS CORRECT
  1. A metallic container is completely filled with liquid. The coefficient...

    Text Solution

    |

  2. At 40^(@)C, a brass rod has a length 50 cm and a diameter 3.0 mm. it i...

    Text Solution

    |

  3. A uniform solid brass sphere is rotating with angular speed omega0 abo...

    Text Solution

    |

  4. An aluminium measuring rod, which is correct at 5^@C measures the leng...

    Text Solution

    |

  5. A thin copper wire of length l increases in length by 1% when heated f...

    Text Solution

    |

  6. Which one of the following would raise the temperature of 20 g of wate...

    Text Solution

    |

  7. The lower and upper fixed points of faulty thermometer are 5^(@) and 9...

    Text Solution

    |

  8. A constant volume gas thermopmeter shows pressure reading of 50cm and...

    Text Solution

    |

  9. The temperature of a body on Kelvin scale is found to be x K . When it...

    Text Solution

    |

  10. A 1-L flask contains some mercury. It is found that at different tempe...

    Text Solution

    |

  11. The readings of a thermometer at 0^(@)C and 100^(@)C are 50 cm and 75 ...

    Text Solution

    |

  12. A wire of cross sectional ara A at temmperature T is held taut with ne...

    Text Solution

    |

  13. A drilling machine of power P watts is used to drill a hole in copper ...

    Text Solution

    |

  14. A 2 kg copper block is heated to 500^@C and then it is placed on a lar...

    Text Solution

    |

  15. 5 gm of steam at 100^(@)C is passed into six gm of ice at 0^(@)C. If t...

    Text Solution

    |

  16. A water fall is 84 m high. Assuming that half the kinetic energy of fa...

    Text Solution

    |

  17. The density of a liquid of coefficient of cubical expansion gamma is r...

    Text Solution

    |

  18. A glass flask of volume 1000 cm^(3) is completely filled with mercury ...

    Text Solution

    |

  19. The density of water at 20^(@)"C is 998 kg/m"^(3) and at 40^(@)"C 992 ...

    Text Solution

    |

  20. When x grams of steam at 100^(@)C is mixed with y grams of ice at 0^(@...

    Text Solution

    |