Home
Class 12
PHYSICS
The unit of Wien 's constant b is...

The unit of Wien 's constant b is

A

`Wm^(-2)K^(-4)`

B

`m^(-1)K^(-1)`

C

`Wm^(2)`

D

m- K

Text Solution

Verified by Experts

The correct Answer is:
D
According to Wien's , the product of wavelength corresponding to maximum intensity of radiation and temperature of body (in Kelvin) is constant I .e . `lambda_(m)T=b` = constant .
where , b is Wien's constant and has value `2.89xx10^(-3)m-K` .
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES ANDRADIATION

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2|50 Videos

  • INTERFERENCE AND DIFFRACTION OF LIGHT

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|24 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|20 Videos

Similar Questions

Explore conceptually related problems

The SI unit of Wien's constant in Wien's displacement law is

The unit of planck's constant is equivalent to that of

S.I. unit of gas constant R is

The ratio of SI unit to the CGS unit of plank's constant is

The S.I. unit of planck's constant (h) is

The dimensions of Wien’s constant are

The units of Henry’s law constant are

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-KINETIC THEORY OF GASES ANDRADIATION-MHT CET Corner
  1. To what temperature should the hydrogen at 327^(@)C be cooled at const...

    Text Solution

    |

  2. If 150 J of energy is incident on area 2m^(2) . If Q(r)=15J, coeffici...

    Text Solution

    |

  3. The unit of Wien 's constant b is

    Text Solution

    |

  4. What is an ideal gas ? Explain its main characteristics.

    Text Solution

    |

  5. The gases carbon-monoxide (CO) and nitrogen at the same temperature ha...

    Text Solution

    |

  6. We consider a thermodynamic system. If DeltaU represents the increase ...

    Text Solution

    |

  7. Newton's law of cooling holds good provided the temperature difference...

    Text Solution

    |

  8. At what temperature, pressure remaining unchanged, will the rms veloci...

    Text Solution

    |

  9. At constant pressure , which of the following is true ?

    Text Solution

    |

  10. In terms of mechanical unit , C(p)-C(v) =.. Where , C(p) and C(v) are ...

    Text Solution

    |

  11. The ratio of energy of emitted radiation of a black body at 27^(@)C an...

    Text Solution

    |

  12. With same initial conditions , an ideal gas expands from volume V(1)"...

    Text Solution

    |

  13. A body takes 4 minutes to cool from 100^(@)C to 70^(@)C. To cool from ...

    Text Solution

    |

  14. A gas expands adiabatically at constant pressure such that its tempera...

    Text Solution

    |

  15. The state of a thermodynamic system is represented by

    Text Solution

    |

  16. A black body is at a temperature 300 K. It emits energy at a rate, whi...

    Text Solution

    |

  17. The root mean square speed of hydrogen molecule at 300 K is 1930m/s. T...

    Text Solution

    |

  18. The wavelength of maximum energy released during an atomic axplosion w...

    Text Solution

    |

  19. A cup of tea cools from 80^(@)C to 60^(@)C in one minute. The ambient ...

    Text Solution

    |

  20. The rms velocity of a particle is v at pressure p. If the pressure inc...

    Text Solution

    |