Home
Class 12
PHYSICS
A small metal sphere of radius a is fall...

A small metal sphere of radius a is falling with a velocity v through a vertical column of a viscous liquid. If the coefficient of viscosity of the liquid is `eta`, then the sphere encounters an opposing force of

A

`6 pi eta a^2 v`

B

`(6 eta v)/(pi a)`

C

`6 pi eta a v`

D

`(pi eta v)/(6 a^3)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2014

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS (CATEGORY II)|10 Videos

  • QUESTION PAPER 2014

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS (CATEGORY III)|3 Videos

  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise Category-III|5 Videos

  • QUESTION PAPER 2015

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS (CATEGORY III)|5 Videos

Similar Questions

Explore conceptually related problems

A small metal sphere of radius a is falling with a velocity through a verticle column of a viscous liquid. If the coefficient of viscosity of the liquid is eta , then the sphere encounters an opposing force of

A small spherical body of radius r and density p moves with the terminal velocity v in a fluid of coefficient of viscosity eta and density a . What will be the net force on the body ?

A small spherical body of radius r made of material of density p is dropped into a long column of viscous'liquid of density sigma and coefficent of viscosity eta . The graph of the terminal velocity (v) vs radius (r) of the body will be.

Check the correctness of the relation V=(pipr^(4))/(8etal) where V is the volume per unit time of a liquid flowing through a tube of radius r and length l, eta is the coefficient of viscosity of the liquid and p is the pressure difference between the ends of the tube.