Home
Class 12
PHYSICS
The unit of Stefan's constant sigma is...

The unit of Stefan's constant `sigma` is

A

`Wm^(-2)K^(-1)`

B

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

C

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

D

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

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Unit of Stefan's constant is

The MKS unit of Stefan's constant is

The value of Stefan's constant is

The SI unit of Stefan's constant is :

The value of Stefan's constant is sigma =5.76xx 10^(-8) J s^(-1) m^(-2)K^(-4). Find its value in cgs system.

Calculate the temperature at which a perfect black body radiates at the rate of 1 W cm^(-2) , value of Stefan's constant, sigma = 5.67 xx 10^(-5) W m^(-2) K^(-8)

Calculate the temperature at which a perfect black body radiates at the rate of 1 W cm^(-2) , value of Stefan's constant, sigma = 5.67 xx 10^(-8) W m^(-2)K^(-4)

A pinhole is made in a hollow sphere of radius 5cm whose inner wall is at temperature 727^(@)C . Find the power radiated per unit area. [Stefan's constant sigma=5.7xx10^(-8)J//m^(2)sK^(4) , emissivity (e)=0.2 ]

DISHA-PHYSICAL WORLD, UNITS & DIMENSION-Physics
  1. If the constant of gravitation (G) , Planck's constant (h) and the vel...

    Text Solution

    |

  2. A physical quantity which has a direction:-

    Text Solution

    |

  3. The unit of Stefan's constant sigma is

    Text Solution

    |

  4. In S=a+bt+ct^2. S is measured in metres and t in seconds. The unit of ...

    Text Solution

    |

  5. Wavelength of ray of light is 0.00006 m. It is equal to

    Text Solution

    |

  6. The unit of permittivity of free space epsilon(0) is:

    Text Solution

    |

  7. The dimension of ((1)/(2))epsilon(0)E^(2) (epsilon(0) : permittivity o...

    Text Solution

    |

  8. Which of the following pairs is wrong

    Text Solution

    |

  9. A physical quantity x depends on quantities y and z as follows : x = ...

    Text Solution

    |

  10. If the time period (T)of vibration of a liquid drop depends on surface...

    Text Solution

    |

  11. The dimensional formula for Planck's constant (h) is

    Text Solution

    |

  12. Dimensions of permeability are

    Text Solution

    |

  13. A small steel ball of radius r is allowed to fall under gravity throug...

    Text Solution

    |

  14. The van der Waal's equation of state for some gases can be expressed a...

    Text Solution

    |

  15. The frequency f of vibrations of a mass m suspended from a spring of s...

    Text Solution

    |

  16. If P represents radiation pressure, c represents the speed of light an...

    Text Solution

    |

  17. Which of the following pairs have same dimensions ?

    Text Solution

    |

  18. Find a combination of these three constants that has the dimensions of...

    Text Solution

    |

  19. Find the value of Planck time in seconds

    Text Solution

    |

  20. The energy of a photon is given by E = (hc)/(lambda) If lambda=4xx1...

    Text Solution

    |