Home
Class 12
PHYSICS
A man weighing 90 kg acquires 10^(5) cal...

A man weighing 90 kg acquires `10^(5)` cal of heat from food. The height he can climb by its expense it his metabolic efficiency is 28% is

A

1333m

B

133.3m

C

13.33m

D

1.333m

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2020

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS (CATEGORY-III)|3 Videos

  • QUESTION PAPER 2008

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|38 Videos

Similar Questions

Explore conceptually related problems

A man of mass 90 kg gains 10^(5) cal of heat from his food intake. If his digestive ability is 28%, how much height can be climb up to?

Rohan exerts a pull of 150 kgf. What is the maximum load he can rise with the pulley system if its efficiency= 75% ? V.R =5.

A steam engine delivers 5.4 xx 10^(8)J of work per minute and services 3.6 xx 10^(9) J of heat per minute from its boiler. What is the efficiency of the engine? How much heat is wasted per minute?

A piece of ice at 0^(@)C is dropped to the ground from some height. The piece of ice melts completely due to its impact with the ground. Find the height from which the piece was dropped considering that 60% of its energy is converted into heat. (J = 4.2 J cdot cal^(-1))

The mass of a copper steam boiler is 200 kg. It contains 100 kg of water at 25^(@)C.7xx10^(6) cal of heat is produced by burning 1 kg of coal and only 3% of it is absorbed by the boiler to heat water. How much coal is to be burnt to raise the temperature of the water in the boiler to its boiling point? Specific heat of copper ="0.09 cal.g"^(-1).^(@)C^(-1) .

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2007-PHYSICS
  1. A coil having n number of turns and area A is placed in a magnetic fie...

    Text Solution

    |

  2. An ideal gas undergoing adiabatic expansion obeys the relations

    Text Solution

    |

  3. A man weighing 90 kg acquires 10^(5) cal of heat from food. The height...

    Text Solution

    |

  4. Which of the following devices is used for detecting thermal radiation...

    Text Solution

    |

  5. Energy corresponding to a photon of wavelength 5700Å is

    Text Solution

    |

  6. Which of the following graphs represent variations of thermo emf (E) o...

    Text Solution

    |

  7. 1 gm of water (=1 cm^(3)) when boiled at 1 atmosphere pressure, requir...

    Text Solution

    |

  8. A wire loop of area A is placed in a uniform magnetic field B so that ...

    Text Solution

    |

  9. The source of unlimited thermal energy of stars is due to

    Text Solution

    |

  10. At a certain place, the horizontal component of earth's magnetic field...

    Text Solution

    |

  11. A train moving with a velocity v is passing a station. A passenger sta...

    Text Solution

    |

  12. The dimension of the coefficient of viscosity is

    Text Solution

    |

  13. If the displacement of a particle changes with time as sqrt(x)=t+3, th...

    Text Solution

    |

  14. A rain drop of radius R falls from a height of H metre above the groun...

    Text Solution

    |

  15. Which of the following heat transfer processes is/are necessary so tha...

    Text Solution

    |

  16. If the displacement (X) of the medium in the x-direction at a point x ...

    Text Solution

    |

  17. Which of the following equations is Einstein's equation related to pho...

    Text Solution

    |

  18. An object of mass m is projected at an angle 60^(@) (with horizontal a...

    Text Solution

    |

  19. The temperature at which the r.m.s velocity of constituent gas particl...

    Text Solution

    |

  20. A body is floating partially immersed in a liquid. If the body and the...

    Text Solution

    |