Home
Class 11
PHYSICS
Dimensions of ohm are same as that of (w...

Dimensions of `ohm` are same as that of (where h is Planck's constant and e is charge)

A

h/e

B

`h^2//e`

C

`h//e^2`

D

`h^2e^2`

Text Solution

Verified by Experts

The correct Answer is:
C

ohm `= [ML^(2) T^(-3)A^(-2)]`
`[h/e^2]=([ML^2T^(-1)])/([A^2T^2])=[ML^2T^(-3)A^(-2)]`
Promotional Banner

Topper's Solved these Questions

  • UNITS, DIMENSIONS AND MEASUREMENT

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Dimensions)|84 Videos
  • UNITS, DIMENSIONS AND MEASUREMENT

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Errors of Measurement)|35 Videos
  • TRANSMISSION OF HEAT

    ERRORLESS|Exercise Assertion & Reason|22 Videos
  • WAVES AND SOUND

    ERRORLESS|Exercise ASSERTION & REASON |25 Videos

Similar Questions

Explore conceptually related problems

The Quantum Hall Resistance R_(H) is a fundamental constant with dimensions of resistance. If h is Planck's constant and e the electron charge, then the dimension of R_(H) is the same as

The dimensions of Planck's constant are

Planck's constant has dimensions …………….

Planck's constant has the dimensions of

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

Plancks' constant has the dimensions of

The dimensions of h//e ( h= Plank's constant and e= electronic charge ) are same as that of

Obtain the dimensions of Planck's constant.

State whether the following statements are true or false. Give brief reasons in support ofyour answers. (1) The dimension of (h/e) is the same as that of magnetic flux phi . Here h & e represents Planck's constant and electronic charge respectively. (ii) Two metal plates of same surface area and work function are irradiated by abeam of light, incident normally. Itis found that the photo electric current from the two metals are different.

ERRORLESS-UNITS, DIMENSIONS AND MEASUREMENT-ASSERTION & REASON
  1. Dimensions of ohm are same as that of (where h is Planck's constant an...

    Text Solution

    |

  2. Assertion : 'Light year' and 'Wavelength' both measure distance. Rea...

    Text Solution

    |

  3. Assertion: The error in the measurement of radius of sphere is 0.3%. T...

    Text Solution

    |

  4. Assertion : Force cannot be added to pressure. Reason : Because thei...

    Text Solution

    |

  5. Assertion : Linear mass density has the dimensions of [M^(1)L^(–1)T^(0...

    Text Solution

    |

  6. Assertion : Avogadro number is the number of atoms in one gram mole. ...

    Text Solution

    |

  7. Assertion : Units of Rydberge constant R are m^(-1). Reason : It fol...

    Text Solution

    |

  8. Assertion : Parallax method cannot be used for measuring distance of ...

    Text Solution

    |

  9. Assersion : Out of three meansurements l = 0.7 m, l = 0.70m and l = 0....

    Text Solution

    |

  10. Assertion : Mass, length and time are fundamental physical quantities....

    Text Solution

    |

  11. Assertion: In the relationf = (1)/(2l) sqrt((T)/(m)), where symbols ha...

    Text Solution

    |

  12. Assertion : Now a days a standard metre is defined as in terms of the ...

    Text Solution

    |

  13. Assertion : The time period of a pendulum is given by the formula, T=2...

    Text Solution

    |

  14. Assertion : Surface tension and surface energy have the same dimension...

    Text Solution

    |

  15. Assertion: In y = A sin (omega t - kx),(omega t - kx) is dimensionless...

    Text Solution

    |

  16. Assertion: Dimensional constant are the quantites whose value are cons...

    Text Solution

    |

  17. Assertion : A.U. is much bigger than Å. Reason : A.U. stands for ast...

    Text Solution

    |

  18. Assertion: When we change the unit of measurerment of a quantity its n...

    Text Solution

    |