Home
Class 11
PHYSICS
The number of particles is given by n = ...

The number of particles is given by `n = -D(n_(2) - n_(1))/( x_(2) - x_(1))` crossing a unit area perpendicular to X - axis in unit time , where `n_(1)and n_(2)` are particles per unit volume for the value of `x` meant to `x_(2) and x_(1)` . Find the dimensions of `D` called diffusion constant.

Promotional Banner

Topper's Solved these Questions

  • Units and Measurements

    SL ARORA|Exercise Exercise|499 Videos

  • THERMODYNAMICS

    SL ARORA|Exercise Exercise|342 Videos

  • VECTORS

    SL ARORA|Exercise Problems For Self Practice|56 Videos

Similar Questions

Explore conceptually related problems

Number of particles is given by n=-D(n_(2)-n_(1))/(x_(2)-x_(1)) crossing a unit area perpendicular to X -axis in unit time, where n_(1) and n_(2) are number of particles per unit volume for the value of x meant to x_(2) and x_(1) . Find dimensions of D called as diffusion constant

The number of terms in the expansion of (x+1/x+1)^n is (A) 2n (B) 2n+1 (C) 2n-1 (D) none of these

When 'n' number of particles of masses m are at distances x_1 =a, x_2 =ar, x_3=ar^2…x_n = ar^n ,units from origin on the X-axis, then find the distance of centre of mass of the system from origin.

When 'n' number of particles of masses m, 2m, 3m,….nm are at distances x_1 =1, x_2 =2, x_3=3…x_n = n units respectively from origin on the X-axis, then find the distance of centre of mass of the system from origin.

When 'n' number of particles of masses m, 2m, 3m,….nm are at distances x_1 =1, x_2 =4, x_3=9…x_n = n^2 units respectively from origin on the X-axis, then find the distance of centre of mass of the system from origin.

If 1<=m<=n,m in n, then the value of lim_(x rarr oo)(x_(1),x_(2)......x_(n)) is

SL ARORA-Units and Measurements-Exercise
  1. The number of particles is given by n = -D(n(2) - n(1))/( x(2) - x(1))...

    Text Solution

    |

  2. Calculate the number of astronomical units in one metre.

    Text Solution

    |

  3. How many parsec are ther in one metre?

    Text Solution

    |

  4. How many metre are there in a light year?

    Text Solution

    |

  5. The density of air is 1.293 kg /m^3. Express it in cgs units.

    Text Solution

    |

  6. Express an acceleration of 10ms^(-2) in km h^(-2)

    Text Solution

    |

  7. If a mass of a proton is 1.67xx10^(-27)kg, how many protons will be pr...

    Text Solution

    |

  8. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  9. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  10. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  11. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  12. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  13. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  14. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  15. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

    Text Solution

    |

  16. What is one astronomical unit ? Express it in metres . Write its or...

    Text Solution

    |

  17. What is the order of magnitude of second in a day ?

    Text Solution

    |

  18. In a submarine fitted with a SONAR, the time between the genretaion of...

    Text Solution

    |

  19. A radar signal is beamed towards a planet and its echo is recived 7 mi...

    Text Solution

    |

  20. A rock under water is 1595 m deep. Find the time in which an ultrasoni...

    Text Solution

    |

  21. The angle of elevation of the top of a hill is 30^(@) from a point on ...

    Text Solution

    |