Home
Class 12
PHYSICS
A black body emits radiations of maximum...

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

A

`2754.8`A

B

3000 Å

C

3500 Å

D

4000 Å

Text Solution

Verified by Experts

The correct Answer is:
B
`lamda_(m_(2))=(T_(1))/(T_(2))xxlamda_(m_(1))=(1500)/(2500)xx5000=3000A^(@)`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Kirchhoffs law of heat radiation)|19 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Stefans Law of Black Body Radiation)|52 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Perfectly black body, emmissive power and emmissivity)|38 Videos

  • INTERFERENCE AND DIFFRACTION

    NIKITA PUBLICATION|Exercise MULTPLE CHOICE QUESTIONS|333 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos

Similar Questions

Explore conceptually related problems

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

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

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

A heated body emits radiation which has maximum intensity at frequency v_m If the temperature of the body is doubled:

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

A heated body emits radiation which has maximum intensity near the wavelength lamda_(0) . The emissivity of its material is 0.75. the absolute temperature of the body is doubled

The energy emitted per second by a black body at 27^(@)C is 10 J. If the temperature of the black body is increased to 327^(@)C , the energy emitted per second will be

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

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

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Spectrum of Black Body Radiations in Terms Wavelength)
  1. The cause of Fraunhoffer lines is

    Text Solution

    |

  2. Wien's distribution law fails at

    Text Solution

    |

  3. Which of the following can be used to estimate the temperature of a st...

    Text Solution

    |

  4. If the wavelength corresponding to maximum energy radiated from the mo...

    Text Solution

    |

  5. A spherical body of 5 cm radius is maintained at a temperature of 327^...

    Text Solution

    |

  6. Two stars A and B radiates maximum energy at 3600 Å and 4200 Å, respec...

    Text Solution

    |

  7. The maximum radiant energyy emitted at 1000 K is for a wavelength of 2...

    Text Solution

    |

  8. The surface temperature of the sun is about 6000 K. the sun's radiatio...

    Text Solution

    |

  9. If wavelengths of maximum intensity of radiations emitted by the sun a...

    Text Solution

    |

  10. The wavelength of maximum emitted energy of a body at 700 K is 4.08 mu...

    Text Solution

    |

  11. A black body at 200 K is found to exit maximum energy at a wavelength ...

    Text Solution

    |

  12. Two stars emit maximum radiation at wavelength 3600 Å and 4800 Å respe...

    Text Solution

    |

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

    Text Solution

    |

  14. Black body at a temperature of 1640K has the wavelength corresponding ...

    Text Solution

    |

  15. Solar radiation emitted by sun resembles that emitted by a body at a t...

    Text Solution

    |

  16. What will be the ratio of temperatures of sun and moon if the waveleng...

    Text Solution

    |

  17. The absolute temperatures of two black bodies are 2000 K and 3000 K re...

    Text Solution

    |

  18. A particular star (assuming it as a black body) has a surface temperat...

    Text Solution

    |

  19. The maximum energy in thermal radiation from a source occurs at the wa...

    Text Solution

    |

  20. The intensity of radiation emitted by the sun has its maximum value at...

    Text Solution

    |