Home
Class 12
PHYSICS
A spherical black body with a radius of ...

A spherical black body with a radius of 12 cm radiates 450 watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be

A

225

B

450

C

1000

D

1800

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Evaluation test|18 Videos

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise critical thinking|104 Videos

  • INTERFERENCE AND DIFFRACTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos

Similar Questions

Explore conceptually related problems

A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be (a)225 (b)450 (c) 900 (d)1800

A spherical black body with a radius of 12cm radiates 450W power at 500K. If the radius were halved and the temperature doubled, the power radiated in watt would be

A spherical black body with a radius of 20 cm radiates 440 W power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be

A spherical black body with radius 12 cm radiates 640 w power at 500 K. If the radius is halved and the temperature doubled, the power radiated in watts would be

A spherical black body with radius 12 cm radiates 450 W power at 500 K. If the radius is halved and temperature is doubled, the power radiated in watt would be

A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. What would be the power of radiation if radius were to be halved and the temperature is doubled ?

a spherical body of radius 10cm radiates 300 W at 227°C . If the radius is doubled and temperature is remain same, the power radiated will be

The total radiative power emitted by spherical blackbody with radius R and temperature T is P. If the radius if doubled and the temperature is halved then the radiative power will be -

A spherical black body of radius n radiates power p and its rate of cooling is R. then.

If the absolute temperature of a body is doubled, the power radiated will increase by a factor of

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -Competitive thinking
  1. A metal ball of surface area 200 cm^(2) and temperature 527^(@)C is ...

    Text Solution

    |

  2. A black body of emissive power 81 J/m^(2) s when it is at 300 K and or...

    Text Solution

    |

  3. A spherical black body with a radius of 12 cm radiates 450 watt power ...

    Text Solution

    |

  4. Parallel rays of light of intensity I=912 WM^-2 are incident on a sphe...

    Text Solution

    |

  5. A sphere at temperature 600 K is placed in an enviroment to temperatur...

    Text Solution

    |

  6. Two bodies A and B are placed in an evacuated vessel maintained at a t...

    Text Solution

    |

  7. The sphere of radii 8 cm and 2 cm are cooling. Their temperatures are ...

    Text Solution

    |

  8. Assertion : Perspiration from human body helps in cooling the body. ...

    Text Solution

    |

  9. Ac cording to Newton's law of cooling, the rate of cooling of a body i...

    Text Solution

    |

  10. A bucket full of hot water cools from 75^(@)C to 70^(@)C in time T(1),...

    Text Solution

    |

  11. A liquid cools from 70 °C to 60 °C in 5 minutes. If the temperature of...

    Text Solution

    |

  12. An object is cooled from 75 ^(@)Cto 65^(@)C in 2 min in a room at 30^...

    Text Solution

    |

  13. A body cools from 100° C to 70° C in 8 second. If temperature of surro...

    Text Solution

    |

  14. A body cools from a temperature 3 T to 2 T in 10 minutes. The room tem...

    Text Solution

    |

  15. Certain quantity of water cools from 70^(@)C to 60^(@)C in the first 5...

    Text Solution

    |

  16. Rate of cooling of body is 0.5^(@)C/min, when the system is 50^(@)C ab...

    Text Solution

    |

  17. Two thermometers A and B are exposed in sunlight. The bulb of A is pai...

    Text Solution

    |

  18. In a given process on an ideal gas, dW=0 and dQlt0. Then for the gas

    Text Solution

    |

  19. A perfect gas goes from state A to another state B by absorbing 8 x 10...

    Text Solution

    |

  20. A metal bar of mass 1.5 kg is heated at atmospheric pressure. Its temp...

    Text Solution

    |