Home
Class 11
PHYSICS
Find the physical quantity whose value d...

Find the physical quantity whose value depends on the velocity of light c, mass of electron m and Planck constant h and which has the dimension of distance.

Text Solution

Verified by Experts

The correct Answer is:
`h/(mc)`
Promotional Banner

Topper's Solved these Questions

  • UNITS AND DIMENSION

    NN GHOSH|Exercise EXERCISE|26 Videos

  • THERMOMETRY

    NN GHOSH|Exercise All Questions|9 Videos

  • VECTOR AND SCALARS

    NN GHOSH|Exercise All Questions|48 Videos

Similar Questions

Explore conceptually related problems

If the velocity of light c, gravitational constant G and Planck's constant h be taken as fundamental units the dimension of mass in the new system will be-

(a) construct an expression for a quantity having the dimension of length starting from velocity of light c, the mass of an electron m and Planck's constant h. (b) Evaluate the value of this length taking constant of proportionality to be unity, m=9.1xx10^(-31) kg, c=3xx10^(8) m//s and h=6.63xx10^(-34) J-s . [This wavelength is called Compton wavelength and plays an important role in atomic physics.]

Which physical quantity has a unit of electron volt.

The physical quantity which has same dimensions as that of Planck's constant is

If the velocity of light c, Planck's constant h and time t are taken as basis of fundamental units, then the dimension of force will change to

NN GHOSH-UNITS AND DIMENSION-EXERCISE
  1. Assuming that the largest mass that can be moved by a flowing river de...

    Text Solution

    |

  2. The velocity of sound in a gas depends on its pressure and density . O...

    Text Solution

    |

  3. The viscous force on a spherical body, when it moves through a viscous...

    Text Solution

    |

  4. The rate of volume flow of water through a canal is found to be a func...

    Text Solution

    |

  5. Show that the following are the dimensions of energy. (i)mc^2 where ...

    Text Solution

    |

  6. Show that RC, where R is the resistance and C is the capacitance, is o...

    Text Solution

    |

  7. Using force (F), length (L) and time (T) as base quantities , find the...

    Text Solution

    |

  8. If the units of length and force be increased three times, show that t...

    Text Solution

    |

  9. A gas bubble, from an explosion under water, oscillates with a period ...

    Text Solution

    |

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

    Text Solution

    |

  11. In the formula X = 3YZ^(2),X and Z have dimensions of capacitance and ...

    Text Solution

    |

  12. If the velocity of light c, the gravitational constant G and Planck co...

    Text Solution

    |

  13. The viscosity eta of a gas is determined by its density rho, molecular...

    Text Solution

    |

  14. Assuming that the vibration frequency of atoms in a crystal depends on...

    Text Solution

    |

  15. If the resistance experienced by a spherical body moving through a liq...

    Text Solution

    |

  16. The critical angular velocity omegac of a cylinder inside another cyli...

    Text Solution

    |

  17. Find the physical quantity whose value depends on the velocity of ligh...

    Text Solution

    |

  18. The force of attraction between two points 1 kg masses Im apart propos...

    Text Solution

    |

  19. Find dimensionally the relation between reverberation period t of a ro...

    Text Solution

    |

  20. The resistance R to the motion of a ship depends on the velocity v of ...

    Text Solution

    |