Home
Class 11
PHYSICS
If a black body is radiating at T =1650K...

If a black body is radiating at `T =1650K` at what wavelenght is the intensity maximum ? .

Text Solution

Verified by Experts

According Wien's law `lambda_(m)T =2.9 xx 10^(-3) mK`
`lambda_(max) = (2.9 xx 10^(-3))/(1650) = 1.8mum` .
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    NARAYNA|Exercise C .U .Q|89 Videos

  • TRANSMISSION OF HEAT

    NARAYNA|Exercise LEVEL -1 (C.W)|1 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Exercise|187 Videos

  • UNITS AND MEASUREMENTS

    NARAYNA|Exercise STATEMENT TYPE QUESTION|23 Videos

Similar Questions

Explore conceptually related problems

From a black body, radiation is not :

The power emitted per unit area of a black body is R watt/ m^2 . At what wavelength will the power radiated by the black body be maximum. If the Stefan's constant is sigma and Wien's constant is b, then

Power emitted per unit area of a black body is R " watt/m"^(2) . At what wavelength will the power radiated by black body be maximum is stefan's constant is sigma and Wien's constant is b then.

The surface temperature of a black body is 1200 K. What is the wavelength corresponding to maximum intensity of emission of radiation if Wien's constant b = 2.892xx10^(-3)mK ?

If the temperature of a black body is doubled, the frequency at which the spectral intensity becomes maximum will be

The spectrum from a black body radiation is a

A black body emits radiation at the rate P when its temperature is T. At this temperature the wavelength at which the radiation has maximum intensity is lamda_0 , If at another temperature T' the power radiated is P' and wavelength at maximum intensity is (lamda_0)/(2) then

When the temperature of black body rises, then the wavelength corresponding to the maximum intensity (lamda_(m))

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

NARAYNA-TRANSMISSION OF HEAT-LEVEL-II(C.W)
  1. If a black body is radiating at T =1650K at what wavelenght is the int...

    Text Solution

    |

  2. Three metal rods of coefficient of thermal conductivities K,2K,3K cond...

    Text Solution

    |

  3. Two rods one is semi circular of thermal conductivity K(1) and otheir ...

    Text Solution

    |

  4. Two identical rods of same metal are first waleded in series and then ...

    Text Solution

    |

  5. Two slabs A and B of equal surface area are placed one over the other ...

    Text Solution

    |

  6. Three metal rods of same lenghs and same area of cross sections having...

    Text Solution

    |

  7. Two hollow supheres of thickness are filled with ice The ratio of thei...

    Text Solution

    |

  8. Three rods of same dimensions have thermal condutivity 3K,2K and K The...

    Text Solution

    |

  9. Three rods of lengths L,21 and 3L having thermal conductivities 3K,2K ...

    Text Solution

    |

  10. Three rods of identical cross-sectional area and made from the same me...

    Text Solution

    |

  11. hollow metal with side 0.5m and wall thickess 5 xx 10^(-3)m is filled ...

    Text Solution

    |

  12. One end of thermally insulated rod is kept at a temperature T(1) and t...

    Text Solution

    |

  13. The temperature of a furnace is 2227^(@)C and the intensity is maximum...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. The power radiated by a black body is 'P' and it radiates maximum ener...

    Text Solution

    |

  17. There is a temperature difference of 1K between two black patches of s...

    Text Solution

    |

  18. A black body radiates energy at the rate of E "watt"//m^(2) at a high ...

    Text Solution

    |

  19. The radiant energy from the Sun incident normally at the surface of ea...

    Text Solution

    |

  20. A star behaves like perfeact Black body emitting radiant energy The ra...

    Text Solution

    |

  21. Two spherical bodies have radii R,2R and emissivities e,2e If the temp...

    Text Solution

    |