Home
Class 11
PHYSICS
The temperature of a furnace is 2227^(@)...

The temperature of a furnace is `2227^(@)C` and the intensity is maximum in its spectrum nearly at `12000 A^(@)` If the intensity in the spectrum of star is maximum nearly at `48000 A^(@)` then the surface temperature of the star is .

A

`8400^(@)C`

B

`6250^(@)C`

C

`7200^(@)C`

D

`5977^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
D

`lambda_(m)T` = constant `rArr lambda_(1) T_(1) = lambda_(2) T_(2)`
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    NARAYNA|Exercise LEVEL-I(H.W)|19 Videos
  • THERMODYNAMICS

    NARAYNA|Exercise Exercise|187 Videos
  • UNITS AND MEASUREMENTS

    NARAYNA|Exercise STATEMENT TYPE QUESTION|23 Videos

Similar Questions

Explore conceptually related problems

The temperature of a furnace is 2324^(@)C and the intensity is maximum in its radiation spectrum nearly at 12,000Å .If the intensity in the spectrum of star is maximum nearly at 4800Å , then the surface temperature of star is nearly:

The temperature of a furnace is 2327^(@)C and the intensity is maximum in its radiation spectrum at 12000Å. If the intensity in the spectrum of a star is maximum at 4800Å, then the surface temperature of the star is

The temperature of a furnace is 827^@C . At which wavelength will it radiate maximum energy?

The luminousity of a star is 10000 times that of the sun. if the surface temperature of the sun is 6000 K, then the surface temperature of the star is

The temperature of furance is 2000^(@)C , in its spectrum the maximum intensity is obtained at about 4000Å . If the maximum intensity is at 2000Å ,calculate the temperature of the furnace is .^(@)C .

The light emitted by the sun has maximum wavelength of 570 nm. The light emitted by another star has the maximum wavelength of 380 nm. What is the ratio of the surface temperatures of the star and the sun ?

On observing light from three different stars P , Q and R , it was found that intensity of violet colour is maximum in the spectrum of P , the intensity of green colour is maximum in the spectrum of R and the intensity of red colour is maximum in the spectrum of Q . if T_(P) , T_(Q) and T_(R) are respective absolute temperature of P , Q and R . then it can be concluded from the above observation that

The sun emits light with a maximum wavelength of 510 nm while another star X emits light of maximum wavelength of 350 nm. What is the ratio of the surface temperatures of the sun and the star ?

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

NARAYNA-TRANSMISSION OF HEAT-LEVEL-II(C.W)
  1. Three rods of lengths L,21 and 3L having thermal conductivities 3K,2K ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. The temperature of a body is increased by 50%. The amount of radiation...

    Text Solution

    |

  15. A solid sphere is at a temperature T.K The sphere is cut into two halv...

    Text Solution

    |

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

    Text Solution

    |

  17. Power radiated by a black body is P0 and the wavelength corresponding ...

    Text Solution

    |

  18. A body cools from 70^(@)C to 50^(@)C in 5minutes Temperature of surrou...

    Text Solution

    |

  19. The bodies have thermal capacities in the ratio 3:4 and the rates of l...

    Text Solution

    |

  20. A calorimeter of water equivalent 6g has water of mass 64g up to a cer...

    Text Solution

    |