Home
Class 12
PHYSICS
In a Carnot engine when T(2) = 0^(@)C an...

In a Carnot engine when `T_(2) = 0^(@)C` and `T_(1) = 200^(@)C` its efficiency is `eta_(1)` and when `T_(1) = 0^(@)C` and `T_(2) = -200^(@)C`. Its efficiency is `eta_(2)`, then what is `eta_(1)//eta_(2)`?

A

0.577

B

0.733

C

0.638

D

Cannot be calculated

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 86

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 88

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

If a carnot engine works between 127^(@)C and 527^(@)C then its efficiency is

If a Carnot engine works between 127^@C and 727^@C , then its efficiency is

A Carnot engine operates between 200^(@)C and 20^(@)C . Its maximum possible efficiency is:

A Carnot's engine is made to work between 200^(@)C and 0^(@)C first and then between 0^(@)C and -200^(@)C . The ratio of efficiencies of the engine in the two cases is

What per cent T_(1) is of T_(2) for a heat engine whose efficiency is 10%

In an isochoric process if T_(1)=27^(@)C and T_(2)=127^(@)C then P_(1)//P_(2) will be equal to

The efficiency of an engine is 1/2. When T_(2) is reduced by 100^(@)C , the efficiency becomes 2/3. Find T_(1)

NTA MOCK TESTS-NTA NEET SET 87-PHYSICS
  1. Two satellites of masses m1 and m2 (m1 gt m2) are revolving around ear...

    Text Solution

    |

  2. The total energy radiated from a block body source at constant tempera...

    Text Solution

    |

  3. In a Carnot engine when T(2) = 0^(@)C and T(1) = 200^(@)C its efficien...

    Text Solution

    |

  4. Shown in the figure are three P – V diagrams. The case in which the wo...

    Text Solution

    |

  5. A magnetic dipole of magnetic moment 6xx 10^(-2) A m^2 and moment of ...

    Text Solution

    |

  6. A wire loop that encloses an area of 20 cm^2 has a resistance of 10 O...

    Text Solution

    |

  7. A coil of inductive reactance 1//sqrt(3)Omega and resistance 1Omega is...

    Text Solution

    |

  8. An eagle flies at constant velocity horizontally across the sky, carry...

    Text Solution

    |

  9. In the given figure , if the velocity of the block C at a particular i...

    Text Solution

    |

  10. A system is shown in fig. Assume that the cylinder remains in contact ...

    Text Solution

    |

  11. During beta^(-) emission

    Text Solution

    |

  12. A nuclear transformation is denoted by X(n,alpha) rarr. (3)^(7)Li. Whi...

    Text Solution

    |

  13. Block A is hanging from a vertical spring and is at rest. Block B stri...

    Text Solution

    |

  14. If k(s) and k(p) respectively are effective spring constant in series ...

    Text Solution

    |

  15. A plane electromagnetic wave of wave intensity 6 W//m^(2) strikes a sm...

    Text Solution

    |

  16. If the kinetic energy of a free electron doubles , its de - Broglie wa...

    Text Solution

    |

  17. A frame made of metalic wire enclosing a surface area A is covered wit...

    Text Solution

    |

  18. In turbulent flow the velocity of the liquid molecules in contact with...

    Text Solution

    |

  19. A person can see objects clearly only when they lie between 50cm and ...

    Text Solution

    |

  20. A concave mirror of focal length f produces a real image n times the s...

    Text Solution

    |