Home
Class 12
PHYSICS
The temperature of hot and cold end of a...

The temperature of hot and cold end of a 20 cm long rod in steady state with no side losses is `100^(@)C` and `20^(@)C` respectively. Temperature at the centre of the rod is :

A

`50^(@)C`

B

`60^(@)C`

C

`40^(@)C`

D

`30^(@)C`.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • UNIT TEST PAPER NO.2

    MODERN PUBLICATION|Exercise MCQ|25 Videos

  • UNITS, MEASURMENTS, DIMENSIONS, ERRORS OF MEASUREMENTS

    MODERN PUBLICATION|Exercise Recent Competitive Questions|7 Videos

Similar Questions

Explore conceptually related problems

The temperature of a steel rod is 330K. Its temperature in 0^@ C is

The temperature of two bodies measured by a thermometer are t_(1) = 20^(@)C pm 0.5^(@)C and t_(2)=50^(@)C pm 0.5^(@)C . Calculate the temperature difference and the error theirin.

A body cools from 80^(@)C to 50^(@) C in 5 minutes. Calculate the time it takes to cool from 60^(@)C to 30^(@)C . The temperature of the surroundings is 20^(@)C

A , B and C are the three identical conductors but made from different materials . They are kept in contact as shown . Their thermal conductivities are K , 2K and (K)/(2) . The free end of A is at 100^(@) C and the free end of C is at 0^(@)C . During steady state , the temperature of the junction of A and B is nearly .... ""^(@) C .

MODERN PUBLICATION-UNIT TEST PAPER NO.4-MCQ
  1. The difference between the apparent frequency of a source of sound as ...

    Text Solution

    |

  2. An electric refrigerator abstracts 2000 calories from ice trays. The c...

    Text Solution

    |

  3. A car travelling at 10" ms"^(-1) sounds a horn, which has a frequency ...

    Text Solution

    |

  4. Two samples A and B of a gas are initially at the same temperature and...

    Text Solution

    |

  5. At 16^(@)C two open organ pipes when wounded together produce 51 beats...

    Text Solution

    |

  6. If the temperature of a black body is increased by 50% then the amount...

    Text Solution

    |

  7. Beats are produced by two waves y(1)=asin2000pit, and y^(2)=asin2008pi...

    Text Solution

    |

  8. A body cools from 60^(@)C to 50^(@)C in 10 minutes, when kept in air a...

    Text Solution

    |

  9. The temperature of hot and cold end of a 20 cm long rod in steady stat...

    Text Solution

    |

  10. Four indentical rods of same material are joined end to end to from a ...

    Text Solution

    |

  11. A uniform rope of length 12 metres and mass 6 kg hangs vertically from...

    Text Solution

    |

  12. A sphere of radius r, density d and specific heat S is heated to tempe...

    Text Solution

    |

  13. The correct curve showing maximum emissive power E(m) and absolute tem...

    Text Solution

    |

  14. In an adiabatic process wherein pressure is increased by 2/3%. If (C(p...

    Text Solution

    |

  15. The (W/Q) of a Carnot - engine is 1//6. Now thw temperature of sink is...

    Text Solution

    |

  16. A gas (gamma=1.5) is taken through adiabatic process in which volume i...

    Text Solution

    |

  17. Two identical rods of copper and iron are coated with wax uniformly. W...

    Text Solution

    |

  18. The motion of a particle executing simple harmonic motion is given by ...

    Text Solution

    |

  19. When the temperature of an ideal gas is increased by 600 K, the veloci...

    Text Solution

    |

  20. In Ingen Hauze's experiment, the wax melts up to lengths 10 and 25 cm ...

    Text Solution

    |