Home
Class 12
PHYSICS
An ideal Black-body at room temperature ...

An ideal Black-body at room temperature is thrown into a furnace. It is observed that

A

initially it is the darkest body and becomes the brightest

B

it is the darkest body at all times

C

it cannot be distinguished at all times.

D

initially it is the darkest and at later times if cannot be distinguished

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Competitive thinking|187 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 black body at high temperature emits thermal radiations of

The energy distribution E with the wavelength (lambda) for the black body radiation at temperature Kelvin T is shown in the figure. As the temperature is increased the maxima will

The shows a radiant energy spectrum graph for a black body at at temperature T If the temperature of the body is raised to a higher temperature T then choose the correct statement (s).

In the figure, the distribution of energy density of the radiation emitted by a black body at a given temperature is shown. The possible temperature of the black body is

The rate of dissipation of heat by a black body at temperature T is Q . What will be the the rate of dissipation of heat by another body at temperature 2T and emissivity 0.25 ?

A power radiated by a black body is P_0 . and the wavelength corresponding to the maximum energy is around lambda . On changing the temperature of the black body, It was observed that the power radiated is increased to 256/81P_0 . The shift in the wavelength corresponding to the maximum energy will be

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -Evaluation test
  1. The power radiated by a black body is P, and it radiates maximum energ...

    Text Solution

    |

  2. One mole of an ideal gas is kept enclosed under a light piston (area =...

    Text Solution

    |

  3. A metallic pipe with nut and bolt assembly is shown in the figure. as ...

    Text Solution

    |

  4. Variation of heat of reaction with temperature is known as

    Text Solution

    |

  5. A black pattern on a porcelain bowl appears brighter than the rest of ...

    Text Solution

    |

  6. A boiler heats water flowing at the rate of 2.0 litres per minute from...

    Text Solution

    |

  7. For an ideal gas,

    Text Solution

    |

  8. A reversible engine converts one third input into work. When the tempe...

    Text Solution

    |

  9. Two bodies A and B having same surface areas have emmissivities of 0.0...

    Text Solution

    |

  10. Two different adiabatic curves for the same gas intersect two isotherm...

    Text Solution

    |

  11. A given quantity of a ideal gas is at pressure P and absolute tempera...

    Text Solution

    |

  12. A given quantity of a ideal gas is at pressure P and absolute tempera...

    Text Solution

    |

  13. Real gases obey ideal gas laws more closely at

    Text Solution

    |

  14. A flask is filled with 10 g of a gas at 20 °C and then heated to 50 °C...

    Text Solution

    |

  15. One mole of an ideal gas at temperature T was cooled isochorically til...

    Text Solution

    |

  16. Assertion: Equal volumes of monatomic and polyatomic gases are adiabat...

    Text Solution

    |

  17. A certain mass of an ideal gas undergoes a reversible isothermal compr...

    Text Solution

    |

  18. An ideal Black-body at room temperature is thrown into a furnace. It i...

    Text Solution

    |