Home
Class 11
PHYSICS
A black body has maximum wavelength lamb...

A black body has maximum wavelength `lambda_(m)` at temperature `2000 K`. Its corresponding wavelength at temperature 3000 will be

A

`(3)/(2) lambda_(m)`

B

`(2)/(3) lambda_(m)`

C

`(4)/(9) lambda_(m)`

D

`(9)/(4) lambda_(m)`

Text Solution

Verified by Experts

The correct Answer is:
B
(2) `lambda_(m) T_(1) = lambda'_(m) T_(2)`
`510 T_(1) = 350 T_(2)`
`(T_(1))/(T_(2)) = (350)/(510) = 0.69`
Promotional Banner

Topper's Solved these Questions

  • HEAT TRANSFER

    CP SINGH|Exercise Exercises|94 Videos

  • HEAT AND CALORIMETRY

    CP SINGH|Exercise Exercise|37 Videos

  • KINETIC THEORY OF GASES

    CP SINGH|Exercise Exercises|79 Videos

Similar Questions

Explore conceptually related problems

A rectangular body has maximum wavelength lambda_(m) at 2000 K . Its corresponding wavelength at 3000 K will be

A black body emits maximum radiation of wavelength lambda_(1) at a certain temperature T_(1) . On increasing the temperature, the total energy of radiation emitted is increased 16 times at temperature T_(2) . If lambda_(2) is the wavelength corresponding to which maximum radiation is emitted at temperature T_(2) . Calculate the value of ((lambda_(1))/(lambda_(2))) .

A black body emits maximum radiation of wavelength is lambda_1 = 2000 Å at a certain temperature T_1 . On increasing the temperature, the total energy of radiation emitted is increased 16 times at temperature T_2 .If lambda_2 is the wavelength corresponding to which maximum radiation emitted at temperature T_2 Calculate the value of (lambda_1/lambda_2)

The energy spectrum f a black body exhibits a maximum around a wavelength lamda_0 . The temperature of the black body is now changed such that the energy is maximum around a wavelength 3 lamda_0//4 . The power radiated by the black body will now increase by a factor of

The maximum wavelength of radiation emitted at 2000 K is 4 mu m. The maximum wavelength of radiation emitted at 2400 K is

The radiation energy density per unit wavelength at a temperature T has a maximum at a wavelength lambda_(0) . At temperature 2T, it will have a maximum wavelength

CP SINGH-HEAT TRANSFER-Exercises
  1. Assuming the Sun to be a spherical body of radius R at a temperature o...

    Text Solution

    |

  2. The sun radiates energy in all directions. The average radiations rece...

    Text Solution

    |

  3. Newton's law of cooling is a special case of .

    Text Solution

    |

  4. A body cools from 50^(@)C to 40^(@)C in 5 min. The surroundings temper...

    Text Solution

    |

  5. In the previous question will be its temperature 5 min after reaching ...

    Text Solution

    |

  6. A body with an initial temperature theta(1) is allowed to cool in a su...

    Text Solution

    |

  7. A hot liquid is kept in a big room. Its temperature is plotted as a fu...

    Text Solution

    |

  8. A liquid in a beaker has temperature theta(t) at time t and theta0 is ...

    Text Solution

    |

  9. A hot liquid is kept in a big room. The logarithm of the numerical val...

    Text Solution

    |

  10. Two solid spheres of radii R(1) and R(2) are made of the same material...

    Text Solution

    |

  11. In previous problem, the ratio of the initial rates of cooling (i.e., ...

    Text Solution

    |

  12. Relation between the colour and the temperature of a star in given by

    Text Solution

    |

  13. A black body has maximum wavelength lambda(m) at temperature 2000 K. I...

    Text Solution

    |

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

    Text Solution

    |

  15. The plots of intensity versus wavelength for three black bodies at tem...

    Text Solution

    |

  16. A black body is at a temperature of 2800K The energy of radiation emit...

    Text Solution

    |

  17. The power radiated by a black body is P and it radiates maximum energy...

    Text Solution

    |

  18. A heater body emits radiation which has maximum intensity near the fre...

    Text Solution

    |

  19. Three discs, A, B and C having radii 2m, 4m and6m respectively are coa...

    Text Solution

    |

  20. Make the pairs {:(A.,"Thermal conductivity",(i),ML T^(-3)K^(-1)),(B....

    Text Solution

    |