Home
Class 12
PHYSICS
A black body is at a temperature of 5760...

A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is `U_(1)`, at wavelength 500 nm is `U_(2)` and at 1000 nm is `U_(3)`, Wien's constant, `b=2.88xx10^(6)` nm K, which of the following is correct ?

A

`U_1gtU_2`

B

`U_2gtU_1`

C

`U_1=0`

D

`U_3=0`

Text Solution

Verified by Experts

The correct Answer is:
B
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 black body is at a temperature of 5760 K . The energy of radiation emitted by the body at wavelength 250 nm is U_(1) at wavelength 500 nm is U_(2) and that at 1000 nm is U_(3) . Wien's consant, b = 2.88 xx 10^(6) nmK . Which of the following is correct?

A blackbody is at a temperature of 2880K. The energy of radiation emitted by this object with wavelength between 499nm and 500nm is U_1 , between 999nm and 1000nm is U_2 and between 1499 nm and 1500 nm is U_3 . The Wien constant b=2.88xx10^6nmK . Then

A black body is at a temperature of 2800K The energy of radiation emitted by this object with wavelength between 499nm and 500 nm is U_(1) between 999nm and 1000nm is U_(2) and between 1499 nm and 1500 nm is U_(3) The Wien's constant b =2.80 xx 10^(6) nm K Then .

A black body is at a temperature of 2880 K. The energy of radiation emitted by this object with wavelength between 499 nm and 500 nm is U_(1) , between 999 nm and 1000 nm is U_(2) and between 1499 nm and 1500 nm is U_(3) . The Wein's constant b = 2.88 xx 10^(6) "nm K" . Then

A black body is at temperature of 500 K . It emits energy at rate which is proportional to

Compare the energies of two radiations E_(1) with wavelength 800 nm and E_(2) with wavelength 400 nm.

The radiation emitted by a black body at a temperature of 2618 K with the wavelength between 599 nm and 600 nm is U_a , between 1099 nm and 1100 nm is _b U and between 1599 nm and 1600 nm is U_c . If the Wien's constant is b = 2.88 xx 10^6 nm K then,

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -Competitive thinking
  1. A black body has maximum wavelength lambda(m) at temperature 2000 K. I...

    Text Solution

    |

  2. A black body emits radiations of maximum intensity at a wavelength of ...

    Text Solution

    |

  3. A black body is at a temperature of 5760 K. The energy of radiation em...

    Text Solution

    |

  4. Three objects coloured black, gray and white can withstand hostile con...

    Text Solution

    |

  5. Two perfect blacd bodies A1 and A2 made out of same material have diam...

    Text Solution

    |

  6. A black rectangular surface of area A emits energy E per second at 27^...

    Text Solution

    |

  7. If the temperature of the sun (black body) is doubled, the rate of ene...

    Text Solution

    |

  8. If the temperature of the sun were to increase form T to 2T and its ra...

    Text Solution

    |

  9. The dimensions of stefan 's constant are

    Text Solution

    |

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

    Text Solution

    |

  11. A black body radiates 20 W at temperature 227^(@)C. If temperature of ...

    Text Solution

    |

  12. A body radiates energy 5 W at a temperature of 127^(@)C . If the tempe...

    Text Solution

    |

  13. Rate of loss of heat of two spheres at same temperature having radii i...

    Text Solution

    |

  14. Rates of emission of heat by perfectly black body maintained at temper...

    Text Solution

    |

  15. A black body at 227^(@)C radiates heat at the rate of 7 cal cm^(-2) s...

    Text Solution

    |

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

    Text Solution

    |

  17. A black body at a temperature of 227^(@)C radiates heat energy at the ...

    Text Solution

    |

  18. The surface of a black body is at a tempera ture 727^(@)C and its cros...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |