Home
Class 12
PHYSICS
The temperature of a body is increased b...

The temperature of a body is increased by `50%`. The amount of radiation emitted by it would be nearly

A

0.5

B

2.25

C

2.5

D

4

Text Solution

Verified by Experts

The correct Answer is:
D

As we use
`(P_(1))/P_(2)=(T^(4))/((1.5T)^(4))`
`implies (P_(1))/P_(2)=(16)/(81)`
`implies P_(2)approx5P_(1)`
Percentage change in rate is
`DeltaP=(P_(2)-P_(1))/(P_(1))xx100`
`implies DeltaP=400%`
Promotional Banner

Topper's Solved these Questions

  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs with One or More Option Correct|20 Videos
  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSEP,INPhO&IPhO|66 Videos
  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Conceptual MCQs Single Option Correct|24 Videos
  • HEAT AND THERMAL EXPANSION

    PHYSICS GALAXY - ASHISH ARORA|Exercise UNSOLVED NUMRICAL PROBLEMS FOR PREPARATION OF NSEP, INPhO & IPhO|82 Videos
  • Kinetic Theory of Gases and Gas Laws

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSEP, INPhO & IPhO|64 Videos

Similar Questions

Explore conceptually related problems

The temperature of a black body is increased by "50%" .The amount of radiation emitted by the body increases by

If the temperature of a hot-black body is increased by 10%, the heat energy radiated by it would increase by

A black body emits radiations of maximum intensity at a wavelength of 5000 A, when the temperature of the body is 1227° C. If the temperature of the body is increased by 2227 °C, the maximum intensity of emitted radiation would be observed at

A black body emits radiations of maximum intensity at a wavelength of Å 5000 , when the temperature of the body is 1227^(@)C . If the temperature of the body is increased by 1000^(@)C , the maximum intensity of emitted radiation would be observed at

If the temperature of hot black body is raised by 5%, rate of heat energy radiated would be increased by how much percentage ?

A body emits Q cal/ cm^(2) of radiation at temperature 227^(@)C . If the temperature of the body is raised to 727^(@)C , then the amount of radiant enegy emitted will be

If the temperature of a hot body is increased by 50% , then the increase in the quantity of emitted heat radiation will be

If the temperature of the body is increased by 10%, the percentage increase in the emitted radiation will be

The temperature of a black body is increased by 50% , then the percentage of increases of radiation is approximetaly

PHYSICS GALAXY - ASHISH ARORA-HEAT TRANSFER -Numerical MCQs Single Options Correct
  1. The dimensional forumla for thermal resistance is

    Text Solution

    |

  2. Two vessels of different materials are similar in size in every respec...

    Text Solution

    |

  3. The temperature of a body is increased by 50%. The amount of radiation...

    Text Solution

    |

  4. A cylinder of radius R made of material of thermal conductivity K(1) i...

    Text Solution

    |

  5. The temperature of a body in increased from 27^(@)C to 127^(@)C. By wh...

    Text Solution

    |

  6. A metal ball of surface area 200 cm^(2) and temperature 527^(@)C is ...

    Text Solution

    |

  7. A spherical black body with a radius of 12 cm radiates 450 W power at ...

    Text Solution

    |

  8. Wires A and B have have identical lengths and have circular cross-sect...

    Text Solution

    |

  9. The ratio of thermal conductivity of two rods of different material is...

    Text Solution

    |

  10. The height of a waterfall is 84 metre . Assuming that the entire kinet...

    Text Solution

    |

  11. In a steady state of thermal conduction, temperature of the ends A and...

    Text Solution

    |

  12. A black metal foil is warmed by radiation from a small sphere at tempe...

    Text Solution

    |

  13. A heat flux of 4000 J/s is to be passed through a copper rod of length...

    Text Solution

    |

  14. The temperature of a liquid drops from 365 K to 361 K in 2 minutes . ...

    Text Solution

    |

  15. Consider two hot bodies B(1) and B(2) which have temperature 100^(@)"C...

    Text Solution

    |

  16. The temperature of a perfect black body is 727^(@)C and its area is 0....

    Text Solution

    |

  17. The temperature of a piece of metal is raised from 27^(@)C to 51.2^(@)...

    Text Solution

    |

  18. The dimensions of coefficient of thermal conductivity is

    Text Solution

    |

  19. Six identical cunducting rods are joined as shown in Fig. Points A and...

    Text Solution

    |

  20. Two rods A and B of different materials are welded together as shown i...

    Text Solution

    |