Home
Class 12
PHYSICS
A ball of radius r and density rho is mo...

A ball of radius r and density `rho` is moving in a liquid of density `sigma_(1)` and then in a liquid of density `simga_3`. The velocity of the ball remains same in all the three liquids. `("Given" sigma_3 gt sigma_2 gt sigma_1)`. If `n_1,n_2 and n_3` are their coefficients of viscosity , then which of the following is always true ?

A

`n_3 gt n_2 gt n_1`

B

`(n_1)/(n_3) gt (n_3)/(n_2)`

C

`(n_2sigma_1-sigma-2n_1)/(n_3sigma_1-sigma_3n_1)=(n_2-n_1)/(n_3-n_1)`

D

`(sigma_1)/(h_1)=(sigma_2)/(h_2)=(sigma_3)/(h_3)`

Text Solution

Verified by Experts

The correct Answer is:
A, C
Promotional Banner

Similar Questions

Explore conceptually related problems

A body weighs W_(1) in a liquid of density rho_(1) and W_(2) in a liquid of density rho_(2) . What is the weight of body in a liquid of density rho_(3) ?

A ball of density rho is released from deep inside of a liquid of density 2 rho . It will move up

A ball of volume V and density rho_(1) is moved downwards by a distance 'd' in liquid of density rho_(2) . Find total change in potential energy of the system.

A small ball of density rho is immersed in a liquid of density sigma(gtrho) to a depth h and released. The height above the surface of water up to which the ball will jump is

A needle of length l and density rho will float on a liquid of surface tension sigma if its radius r is less than or equal to:

A body of volume V and desnity rho is initially submerged in a non-viscous liquid of density sigma (gt rho) . If it is rises by itself through a height h in the liquid. Its kinetic energy will

A sphere of density rho is half submerged in a liquid of density sigma and surface tension T. The sphere remains in equilibrium. Find radius of the sphere (assume the force due to surface tension acts tangentially to surface of sphere)

A block of volume V and density sigma_(b) is placed in liquid of density sigma_(1)(sigma_(1) gt sigma_(b)) , then block is moved upward upto a height h and it is still in liquid. The increase in gravitational energy of the block is :

If two liquids of same mass but densities rho_1 and rho_2 respectively are mixed, then the density of the mixture is:

Two unequal blocks placed over each other of densities sigma_(1) and sigma_(2) are immersed in a fluid of density of sigma . The block of density sigma_(1) is fully submerged so that ratio of their masses is 1/2 and sigma//sigma_(1)=2 and sigma//sigma_(2)=0.5 . Find the degree of submergence of the upper block of density sigma_(2) .