142766 A water drop of radius $1 \mu \mathrm{m}$ falls in a situation where the effect of buoyant force is negligible, Co-efficient of viscosity of air is $1.8 \times 10^{-5} \mathrm{Nsm}^{-2}$ and its density is negligible as compared to that of water $\left(10^{6} \mathrm{gm}^{-3}\right)$. Terminal velocity of the water drop is
(Take acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

142767 The velocity of a small ball of mass ' $m$ ' and density $d_{1}$ when dropped in a container filled with glycerine, becomes constant after some time. If the density of glycerine is $d_{2}$, then the viscous force acting on the ball will be

142769 A vessel contains oil (density $0.8 \mathrm{~g} / \mathrm{cm}^{3}$ ) over mercury (density $13.6 \mathrm{~g} / \mathrm{cm}^{3}$ ) A homogeneous sphere floats with half volume immersed in mercury and the other half in oil. What will be the density (in $\mathrm{g} / \mathrm{cm}^{3}$ ) of the material of the sphere?

142770 The density of a liquid of coefficient of cubical expansion $\gamma$ is $\rho$ at $0^{\circ} \mathrm{C}$. When the liquid is heated to a temperature $T$, the change in density will be

142766 A water drop of radius $1 \mu \mathrm{m}$ falls in a situation where the effect of buoyant force is negligible, Co-efficient of viscosity of air is $1.8 \times 10^{-5} \mathrm{Nsm}^{-2}$ and its density is negligible as compared to that of water $\left(10^{6} \mathrm{gm}^{-3}\right)$. Terminal velocity of the water drop is
(Take acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

142767 The velocity of a small ball of mass ' $m$ ' and density $d_{1}$ when dropped in a container filled with glycerine, becomes constant after some time. If the density of glycerine is $d_{2}$, then the viscous force acting on the ball will be

142769 A vessel contains oil (density $0.8 \mathrm{~g} / \mathrm{cm}^{3}$ ) over mercury (density $13.6 \mathrm{~g} / \mathrm{cm}^{3}$ ) A homogeneous sphere floats with half volume immersed in mercury and the other half in oil. What will be the density (in $\mathrm{g} / \mathrm{cm}^{3}$ ) of the material of the sphere?

142770 The density of a liquid of coefficient of cubical expansion $\gamma$ is $\rho$ at $0^{\circ} \mathrm{C}$. When the liquid is heated to a temperature $T$, the change in density will be

142766 A water drop of radius $1 \mu \mathrm{m}$ falls in a situation where the effect of buoyant force is negligible, Co-efficient of viscosity of air is $1.8 \times 10^{-5} \mathrm{Nsm}^{-2}$ and its density is negligible as compared to that of water $\left(10^{6} \mathrm{gm}^{-3}\right)$. Terminal velocity of the water drop is
(Take acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

142767 The velocity of a small ball of mass ' $m$ ' and density $d_{1}$ when dropped in a container filled with glycerine, becomes constant after some time. If the density of glycerine is $d_{2}$, then the viscous force acting on the ball will be

142769 A vessel contains oil (density $0.8 \mathrm{~g} / \mathrm{cm}^{3}$ ) over mercury (density $13.6 \mathrm{~g} / \mathrm{cm}^{3}$ ) A homogeneous sphere floats with half volume immersed in mercury and the other half in oil. What will be the density (in $\mathrm{g} / \mathrm{cm}^{3}$ ) of the material of the sphere?

142770 The density of a liquid of coefficient of cubical expansion $\gamma$ is $\rho$ at $0^{\circ} \mathrm{C}$. When the liquid is heated to a temperature $T$, the change in density will be

142766 A water drop of radius $1 \mu \mathrm{m}$ falls in a situation where the effect of buoyant force is negligible, Co-efficient of viscosity of air is $1.8 \times 10^{-5} \mathrm{Nsm}^{-2}$ and its density is negligible as compared to that of water $\left(10^{6} \mathrm{gm}^{-3}\right)$. Terminal velocity of the water drop is
(Take acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

142767 The velocity of a small ball of mass ' $m$ ' and density $d_{1}$ when dropped in a container filled with glycerine, becomes constant after some time. If the density of glycerine is $d_{2}$, then the viscous force acting on the ball will be

142769 A vessel contains oil (density $0.8 \mathrm{~g} / \mathrm{cm}^{3}$ ) over mercury (density $13.6 \mathrm{~g} / \mathrm{cm}^{3}$ ) A homogeneous sphere floats with half volume immersed in mercury and the other half in oil. What will be the density (in $\mathrm{g} / \mathrm{cm}^{3}$ ) of the material of the sphere?

142770 The density of a liquid of coefficient of cubical expansion $\gamma$ is $\rho$ at $0^{\circ} \mathrm{C}$. When the liquid is heated to a temperature $T$, the change in density will be