Home
Class 11
PHYSICS
Which one of the following represents th...

Which one of the following represents the correct dimensions of the quantity : `x=(eta)/(rho)`, where `eta`=coefficient of visocosity and `rho` =the density of a liquid?

A

`[ML^(-2)T^(-1)]`

B

`[ML^(-4)T^(-2)]`

C

`[ML^(-5)T^(-2)]`

D

`[M^(0)L^(2)T^(-1)]`

Text Solution

Verified by Experts

The correct Answer is:
D

`[(eta)/(rho)]=[(ML^(-1)T_(-1))/(ML^(-3))]=[M_(0)L^(2)T_(-1)]`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • FLUID MECHANICS

    DC PANDEY|Exercise Level 1 Subjective|36 Videos
  • FLUID MECHANICS

    DC PANDEY|Exercise Subjective Question|2 Videos
  • FLUID MECHANICS

    DC PANDEY|Exercise Assertion and Reason|1 Videos
  • EXPERIMENTS

    DC PANDEY|Exercise Subjective|15 Videos
  • GENERAL PHYSICS

    DC PANDEY|Exercise INTEGER_TYPE|2 Videos

Similar Questions

Explore conceptually related problems

A vertical steel rod has radius a. The rod has a coat of a liquid film on it. The liquid slides under gravity. It was found that the speed of liquid layer at radius r is given by v=(rhogb^(2))/(2eta)ln((r)/(a))-(rhog)/(4eta)(r^(2)-a^(2)) Where b is the outer radius of liquid film, eta is coefficient of viscosity and rho is density of the liquid. (i) Calculate the force on unit length of the rod due to the viscous liquid? (ii) Set up the integral to calculate the volume flow rate of the liquid down the rod. [you may not evaluate the integral]

Show that the following are the dimensions of energy. (i) mc^2 where m=mass and c=velocity of light (ii) (mP)/rho where P=pressure , rho =density of liquid and m=mass (iii)mB where m=magnetic moment and B =magnetic induction field.

Knowledge Check

  • Which one of the following represents the correct dimensions of the coefficient of viscosity?

    A
    (a) `ML^(-1)T^(-1)`
    B
    (b) `MLT^(-1)`
    C
    ( c ) `ML^(-1)T^(-2)`
    D
    (d) `ML^(-2)T^(-2)`
  • Which one of the following represents the correct dimensions of the coefficient of viscosity?

    A
    `[ML^(-1)T^(-2)]`
    B
    `[MLT^(-1)]`
    C
    `[ML^(-1)T^(-1)]`
    D
    `[ML^(-2)T^(-2)]`
  • Which one of the following is correct about surface tension and viscosity (eta) ?

    A
    Both increase with temperature
    B
    Both decrease with temperature
    C
    Surface tension increases whereas `eta` decreases with temperature
    D
    Surface tension decreases whereas `eta` increases with temperature
  • Similar Questions

    Explore conceptually related problems

    Find the dimensional formulae of following quantities: (a) The surface tension S, (b) The thermal conductivity k and (c) The coefficient of viscosity eta . Some equation involving these quantities are S=(rho g r h)/(2) " " Q=k(A(theta_(2)-theta_(1))t)/(d) and " " F=-etaA(v_(2)-v_(1))/(x_(2)-x_(1)) , where the symbols have their usual meanings. ( rho -density, g- acceleration due to gravity , r-radius,h-height, A-area, theta_(1)&theta_(2) - temperatures, t-time, d-thickness, v_(1)&v_(2) -velocities, x_(1)& x_(2) - positions.)

    Which one of the following relations between the elastic constants Y, K and eta is correct ?

    The dimensions of gamma in the relation v = sqrt((gamma p)/(rho)) (where v is velocity, p is pressure , rho is density)

    In dimension of circal velocity v_(0) liquid following through a take are expressed as (eta^(x) rho^(y) r^(z)) where eta, rhoand r are the coefficient of viscosity of liquid density of liquid and radius of the tube respectively then the value of x,y and z are given by

    Which one is the correct relation between the elastic constants Y, K and eta ?