Home
Class 12
PHYSICS
Name a substance that resembles a perfec...

Name a substance that resembles a perfect black body.

Promotional Banner

Topper's Solved these Questions

  • Kinetic Theory of Gases and Radiation

    CHETANA PUBLICATION|Exercise Exercise|110 Videos

  • Electrostatics

    CHETANA PUBLICATION|Exercise Exercise|73 Videos

  • Magnetic Fields due to Electric Current

    CHETANA PUBLICATION|Exercise Exercise|96 Videos

Similar Questions

Explore conceptually related problems

What is perfectly black body ?

What emissive power of perfectly black body ?

State the factors on which emissive power of a body depends. What can you say about the emissive power of perfect black body?

The reflectance and emittance of a perfectly black body are respectively

Emissive power of a perfectly black body

Solar radiation emitted by sun resembles that emitted by a black body at a wavelength of about 4800 overset @ (A) ,. If the sun were to cool down from 6000K to 3000K then the peak intensity would occur at a wavelength

Rates of emission of heat by perfectly black body maintained at temperatures 27° C and 927° C are in ratio

Why is the double walled sphere in Fery's perfect black body evacuated?

The amount of radiation emitted by a perfectly black body is proportional to .

The radiation emitted by a perfectly black body is proportional to

CHETANA PUBLICATION-Kinetic Theory of Gases and Radiation-Exercise
  1. Name a substance that resembles a perfect black body.

    Text Solution

    |

  2. 16 gm of oxygen occupied 0.025 m^3 at 27^@C. It the universal gas cons...

    Text Solution

    |

  3. A cylinder filled with hydrogen gas at 500 K exerts a pressure of 4 at...

    Text Solution

    |

  4. The velocities of three molecules of a gas are 2m//s,3m//s and 4 m//s,...

    Text Solution

    |

  5. Calculate the R.M.S. velocity of helium at temperature 0^@C (density o...

    Text Solution

    |

  6. At what temperature can the R.M.S. velocity of gas be three times its ...

    Text Solution

    |

  7. Calculate the number of molecules in one litre of gas at N.T.P., if ma...

    Text Solution

    |

  8. Find the mass of 10c.c of gas at N.T.P. if RMS.velocity of gas molecul...

    Text Solution

    |

  9. Find the KE per kg of nitrogen molecule at 127^@C (molecular weight of...

    Text Solution

    |

  10. Calculate the R.M.S. velocity of oxygen molecule at N.T.P., if the den...

    Text Solution

    |

  11. If the R.M.S. velocity of oxygen molecules at N.T.P. is 460 m//s, dete...

    Text Solution

    |

  12. The ratio of molar specific heats of certain gas is 1.4, if molar spec...

    Text Solution

    |

  13. Compare the R.M.S. velocity of hydrogen molecules at 400 K with R.M.S....

    Text Solution

    |

  14. Radiant energy is incident on the body at a rate of 1500 J//min. If co...

    Text Solution

    |

  15. Radiant energy is incident on the body at a rate of 1500 J//min. If co...

    Text Solution

    |

  16. Radiant energy is incident on the body at a rate of 1500 J//min. If co...

    Text Solution

    |

  17. A metal cube of each side 0.05 m long emits 0.6k cal in 80 seconds, Ca...

    Text Solution

    |

  18. The emissive power of sphere of area 0.02 m^2 is 0.5 kcal//s-m^2. What...

    Text Solution

    |

  19. The coefficient of absorption of a surface is 0.6. When radiant energy...

    Text Solution

    |

  20. Assuming that the sun radiates as a black body, calculate the energy r...

    Text Solution

    |

  21. The temperature of the filaments of a 100W electric lamp is 2727^@C. T...

    Text Solution

    |