Home
Class 11
PHYSICS
A black body at 1227^(@)C emits radiatio...

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

A

4000 Å

B

5000 Å

C

6000 Å

D

3000 Å

Text Solution

Verified by Experts

The correct Answer is:
D
`(lambda_(1))/(lambda_(2))=(T_(2))/(T_(1))`
`(5000 Å)/(lambda_(2))=(2500 K)/(1500 K)`
`lambda_(1)=3000 Å`
Promotional Banner

Topper's Solved these Questions

  • HEAT TRANSFER

    RESONANCE ENGLISH|Exercise Exercise-2|1 Videos

  • HEAT TRANSFER

    RESONANCE ENGLISH|Exercise Exercise-3|1 Videos

  • HEAT TRANSFER

    RESONANCE ENGLISH|Exercise Exercise-1|1 Videos

  • GRAVITATION

    RESONANCE ENGLISH|Exercise Exercise|21 Videos

  • KINEMATICS

    RESONANCE ENGLISH|Exercise Exercise|65 Videos

Similar Questions

Explore conceptually related problems

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

If the temperature of a black body is increased, then the maximum of the spectrum will

A black body emits radiation of maximum intensity at a wavelength of 5000A when the temperature of the body is 1227^(@) C. If the temperature of the body is increased by 1000^(@) C, calculate the wavelength corresponding to the maximum intensity.

A black body at 200 K is found to emit maximum energy at a wavelength of 14mu m . When its temperature is raised to 1000 K, the wavelength at which maximum energy is emitted is

If the temperature of the body is increases from 27°C to 327°C then wavelength corresponding to maximum intensity becomes

The power radiated by a black body is P, and it radiates maximum energy around the wavelength lambda_(0) . If the temperature of the black body is now changed so that it radiates maximum energy around a wavelength 3lambda_(0)//4 , the power radiated by it will increase by a factor of

The power radiated by a black body is P, and it radiates maximum energy around the wavelength lambda_(0) . If the temperature of the black body is now changed so that it radiates maximum energy around a wavelength 3lambda_(0)//4 , the power radiated by it will increase by a factor of

A black body at 1373 ^@C emits maximum energy corresponding to a wavelength of 1.78 microns. The temperature of the moon for which lamda_m=14 micron wood be

RESONANCE ENGLISH-HEAT TRANSFER-Exercise
  1. Two plates each of area A, thickness L1 and L2 thermal conductivities ...

    Text Solution

    |

  2. Consider a composite slab consisting of two different materials having...

    Text Solution

    |

  3. A square is made of four rods of same material one of the diagonal of ...

    Text Solution

    |

  4. If the temperature difference on the two sides of a wall increases fro...

    Text Solution

    |

  5. The colour of a star indicates its

    Text Solution

    |

  6. The means of energy transfer in vacuum is:

    Text Solution

    |

  7. Which of the following is nearest to blackbody-

    Text Solution

    |

  8. Which of the following is true statement?

    Text Solution

    |

  9. For a black body at temperature 727^(@)C. If the temperature of the bl...

    Text Solution

    |

  10. According to Wien's law

    Text Solution

    |

  11. If lambda(m) denotes the wavelength at which the radiative emission fr...

    Text Solution

    |

  12. A black body at 1227^(@)C emits radiations with maximum intensity at a...

    Text Solution

    |

  13. The energy radiated by a black body is directly proportional to :

    Text Solution

    |

  14. If temperature becomes double, the emitted radiation will be :

    Text Solution

    |

  15. Prevost's theory of heat exchange tells that a body radiates thermal e...

    Text Solution

    |

  16. Reflection and absorption coefficient of a given surface at 0^@C for a...

    Text Solution

    |

  17. A black metal foil is warmed by radiation from a small sphere at tempe...

    Text Solution

    |

  18. A body takes 10 min to cool douwn from 62^@C to 50^@C. If the temperat...

    Text Solution

    |

  19. Two circular disc A and B with equal radii are blackened. They are hea...

    Text Solution

    |

  20. According to Newton’s law of cooling, the rate of cooling of a body is...

    Text Solution

    |