Home
Class 11
PHYSICS
The temperature of two bodies A and B ar...

The temperature of two bodies A and B are respectively `727^(@)C` and `327^(@)C` . The ratio `H_(A) : H_(B)` of the rates of heat radiated by them is

A

`727: 327`

B

`5:3`

C

`25:9`

D

`625: 81`

Text Solution

Verified by Experts

The correct Answer is:
D
`(H_(A))/(H_(B)) = ((727 + 273)^(4))/((327 + 273)^(4)) = ((1000)/(600))^(4) = (5 xx 5 xx 5 xx 5)/(3 xx 3 xx 3xx 3) = (625)/(81)`
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF BULK MATTER

    MTG GUIDE|Exercise Check Your Neet Vitals|22 Videos

  • PROPERTIES OF BULK MATTER

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|40 Videos

  • PROPERTIES OF BULK MATTER

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|40 Videos

  • PHYSICAL WORLD AND MEASUREMENT

    MTG GUIDE|Exercise AIPMT / NEET MCQ|14 Videos

  • THERMODYNAMICS

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|26 Videos

Similar Questions

Explore conceptually related problems

The temperatures of two bodies A and B are 727^(@)C and 127^(@)C . The ratio of rate of emission of radiations will be

The sphere of radii 8 cm and 2 cm are cooling. Their temperatures are 127^(@)C and 527^(@)C respectively . Find the ratio of energy radiated by them in the same time

Compare the rate of radiation of metal body at 727 ""^(@)C and 227 ""^(@)C .

Two bodies are at temperature 27^(@) and 927^(@)C . The heat energy radiated by them will be in the ratio:

The absolute temperatures of two black bodies are 2000 K and 3000 K respectively. The ratio of wavelengths corresponding to maximum emission of radiation by them will be

Two bodies hae temperatures as 227^(@)C and 727^(@)C ratio of heat radiated by them will be

The thermal capacities of two bodies A and B are in the ratio 1:4. if the rate of heat loss are equal for these two bodies then the rate of fall of the temperature will be in the ratio

Two bodies A and B are kept in an evacuated chamber at 27^@C . The temperatures of A and B are 327^@ and 427^@C and respectively. The ratio of rates of loss of heat from A and B will be–

MTG GUIDE-PROPERTIES OF BULK MATTER-NEET Cafe (Topicwise Practice Questions)
  1. Which one of the following is v(m)-T graph for perfectly black body? v...

    Text Solution

    |

  2. The plots of intensity of radiation versus wavelength of three black b...

    Text Solution

    |

  3. A black body radiates heat energy at the rate of 2 xx 10^(5)J//s m^(2)...

    Text Solution

    |

  4. A thin square steel plate 10 cm on a side is heated in a black smith's...

    Text Solution

    |

  5. A cup of tea cools from 65.5^@C to 62.55^@C in one minute is a room at...

    Text Solution

    |

  6. If the temperature of hot black body is raised by 5%, rate of heat e...

    Text Solution

    |

  7. A body takes 10min to cool from 60^(@)C " to" 50^(@0C. If the temperat...

    Text Solution

    |

  8. The temperature of two bodies A and B are respectively 727^(@)C and 32...

    Text Solution

    |

  9. Two spheres of the same material have radii 1m and 4m and temperature...

    Text Solution

    |

  10. Two spherical black bodies of radii R(1) and R(2) and with surface tem...

    Text Solution

    |

  11. A planet is at an average distance d from the sun and its average surf...

    Text Solution

    |

  12. A hot liquid kept in a beaker cools from 80^(@)C to 70^(@)C in two min...

    Text Solution

    |

  13. A bucket full of hot water is kept in a room and it cools from 75°C to...

    Text Solution

    |

  14. Two black bodies at temperature 327^(@)C and 427^(@)C are kept in an e...

    Text Solution

    |

  15. The temperature of a body is increased from –73°C to 327°C. Then the r...

    Text Solution

    |

  16. According to Newton's law of cooling, the rate of cooling of a body is...

    Text Solution

    |

  17. Two spherical bodies A (radius 6cm) and B (radius 18cm) are at tempera...

    Text Solution

    |

  18. A pan pizza cools from 91^(@)C " to "79^(@)C in 2 minutes, on a summer...

    Text Solution

    |

  19. A spherical body of 5 cm radius is maintained at a temperature of 327^...

    Text Solution

    |

  20. The temperature at which a black body ceases to radiate energy is .

    Text Solution

    |