Home
Class 11
PHYSICS
A metal plate of area 10^(3)" "cm^(2) re...

A metal plate of area `10^(3)" "cm^(2)` rests on a layer o oil 6 mm thick. A tangential force of `10^(-2)` N is appled on it to move it with a constant velocity of 6 cm `s^(-1)` . The coefficient of viscosity of the liquid is :-

A

0.1 poise

B

0.2 poise

C

0.3 poise

D

0.4 poise

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise EVALUATE YOURSELF - 8|3 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise EVALUATE YOURSELF - 9|3 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise EVALUATE YOURSELF - 6|4 Videos

  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

A metal plate of area 5 cm ^(2) is placed on a 0.5 mm thick castor oil layer .If a force of 22,500 dyne is needed to move the plate with a velcity of 3cms^(-1) Calculate the coeffcient of viscosity of castor oil.

An external force 6N is applied on a sphere of radius R = 10 cm of mass 1 kg and the sphere moves in a liquid with a constant velocity 5 m/s making 530 with the horizontal.The coefficient of viscosity of the liquid is 20//(6pi), in S.I units. (Take g=10 m//s^(2) )

Knowledge Check

  • A metal plate ofarea 100 sq. cm, rests on a layer of oil 2mm thick. A force of 0.1 N applied parallel to the plate horizontally keeps it moving with uniform speed of 1cm/ s. What is the coefficient of viscosity of oil ?

    A
    `0.5Ns//m^2`
    B
    `1Ns//m^2`
    C
    `1.5Ns//m^2`
    D
    `2Ns//m^2`

  • A metal plate of area 500 cm^92) is kept on a horizontal surface with a layer of oil of thickness 0.5 mm between them. The horizontal force required to drag the plate with a velocity of 2 cm/s is (coefficient of viscosity =0.9 kg/ms)

    A
    180 N
    B
    18 N
    C
    `0.018` N
    D
    `1.8 N`

  • There is a 1 mm thick layer of oil between a flat plate of area 10^(-2)m^(2) and a big plate. How much force is required to move the plate with a velocity of 1.5 cm//s^ . The coefficient of viscosity of oil is 1 poise

    A
    `1.5xx10^(-3)N`
    B
    `1.3xx10^(-5)N`
    C
    `1.5xx10^(-2)N`
    D
    `1.5xx10^(2)N`

    • Similar Questions

    Explore conceptually related problems

    A metal block of area 0.10 m^(2) is connected to a 0.02 kg mass via a string. The string passes over an ideal pulley (considered massless and frictionless) as shown in figure. A liquid with a flim of thickness 0.15 mm is placed between the plate and the table. When released the plate movees to the right with a constant speed of 0.075 m s^(-1) . What is the coefficient of viscosity of the liquid?

    A metal plate 5cmxx5cm rests on layer of castor oil 1mm thick whose coefficient of viscosity is 1.55 Nsm^(-1) . Find the horizontal force required to move the plate with a speed of 2 cm^(-1) .

    If a tangential force of 1dyne cm^-2 of the surface is required to maintain a relative velocity of 1cms^-1 between two layers of a liquid 1 cm apart, then the coefficient of viscosity of the liquid is said to be___.

    What is the viscous force on the drop of liquid of radius 0.2 mm moving with a constant velocity 4cm s^(-1) throught a medium of viscosity 1.8xx10^(-5) Nm^(-2) s .

    A metal plate of area 2m^2 is pulled horizontally with a velocity of 0.5m^-1 on a liquid layer 1mm thick. The force required, if the viscosity of liquid is 12Nsm^-2 is

    Home
    Profile