Home
Class 12
PHYSICS
A hot and a cold body are kept in vacuum...

A hot and a cold body are kept in vacuum separated from each other. Which of the following cause decrease in temperature of the hot body

A

Radiation

B

Convection

C

Conduction

D

emperature remains unchanged

Text Solution

Verified by Experts

The correct Answer is:
A
Heta flow through vacuum is possible in radiation mode due to which temperature of hot body falls.
Promotional Banner

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 43

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos

  • NTA TPC JEE MAIN TEST 45

    NTA MOCK TESTS|Exercise PHYSICS|30 Videos

Similar Questions

Explore conceptually related problems

A hot and a cold body are kept in vacuurn separated from each other. Which of the following causes decrease in temperature of the hot body?

Which of the following elements does NOT react with cold and hot water /

Efficiency of an engine is 0.4, when temperature of its sink ( cold body) is 300 K. What id the temperature of the hot body? Find its efficiency, if the temperature of the hot body is kept unchanged, while temperature of the sink (cold body) is lowered by 50 K. Treat it as reversible engine).

A hot liquid is kept in a big room. Its temperature is plotted as a function of time. Which of the following curves may represent the plot?

Which of the following is a relative measure or indication of hotness or coldness?

A cooling curve is plotted between the temperature of a hot body and time. Which of the following is not true for the cooling curve?

Below the skin, the fat is the form of Or Which of the following helps in maintaining body hot

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 44-PHYSICS
  1. Find the magnetic field at point P due to a straight -line segment AB ...

    Text Solution

    |

  2. The disperod of a particle varies according to the relation x=4 (cos p...

    Text Solution

    |

  3. The dimensional formula for Planck's constant and angular momentum ar...

    Text Solution

    |

  4. A plane mirror, reflecting a ray of incident light, is rotated through...

    Text Solution

    |

  5. A uniform thin rod of length l and mass m is hinged at a distance l//4...

    Text Solution

    |

  6. A hot and a cold body are kept in vacuum separated from each other. Wh...

    Text Solution

    |

  7. The internal energy of a system remains constant when it undergoes (...

    Text Solution

    |

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

    Text Solution

    |

  9. In Young's double-slit experiment, the two slits act as coherent sourc...

    Text Solution

    |

  10. System shown in figure is released from rest . Pulley and spring is ma...

    Text Solution

    |

  11. The value of the resistance of a carbon resistor having the standard c...

    Text Solution

    |

  12. A positive point charge is released from rest at a distance r 0 ...

    Text Solution

    |

  13. The magnitude of displacement (in m) covered by a particle in first tw...

    Text Solution

    |

  14. Consider two blocks A and B of mass 3 kg and 9 kg respectively. Now, b...

    Text Solution

    |

  15. Two tuning forks are vibrating with natural frequency of 510 Hz . One ...

    Text Solution

    |

  16. A capillary tube of radius r is immersed in water and water rises in i...

    Text Solution

    |

  17. A steel rod of cross-sectional area Im^(2) is acted upon by forces as...

    Text Solution

    |

  18. A parallel beam of white light falls on a convex lens. Images of viole...

    Text Solution

    |

  19. A solid sphere of mass 2 kg and radius R rolls on a smooth horizontal ...

    Text Solution

    |

  20. The minimum velocity required to complete a full circle in a vertical ...

    Text Solution

    |